buddy
Active Member
Next time the blower doesnt work just bang on the passenger side dash and kick it from below 
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engine dies - throws codes - what do they mean?
- Thread starter gahammerle
- Start date
gahammerle
Saved by God's grace
The old Fonzie fix. :thumbsup:
Matt Bachand
Depends on the 6.5
Next time the blower doesnt work just bang on the passenger side dash and kick it from below
My glove box would fall out if i did that!
gahammerle
Saved by God's grace
OK, did the TDCO set and learn. TDCO is now -0.88. Took it on a drive and coded 18, 35, & 54. Actual IP timing while driving with codes was 46-47 with occasional drop to 4. Back home, stopped engine, cleared codes, and restarted. Checked readings:
ITD: 8.7
ITM: 8.7
Fuel Rate: 6.88
Actual IP Timing: 30-31
Since my original TDCO on my PCM/EPROM was -0.79 and now it set it to -0.88, does that indicate timing chain is worn? Enough to need replacing?
Here's a snapshot I took a few minutes after restarting it back at home:
Snapshot created 5/11/2009 1:11:30 PM
__________________________________________________________________
ENGINE SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Engine run time: 00:03:17
Boost pressure (MAP): 14.4 PSI
Desired EGR: 15.23 PSI
Desired idle: 600 RPM
EGR pressure: 14.58 PSI
EGR duty cycle: 0 %
Engine coolant temp: 189.2 F°
Engine speed: 581 RPM
Glow plug relay feedback: 0.1 Volts
Glow plug voltage: 0.1 Volts
Ignition voltage: 12.8 Volts
Wastegate duty cycle: 67.6 %
__________________________________________________________________
INFORMATION SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
PCM Calibration ID: 6865
Current DTCs: 0
Accel. ped. pos. 1: 0.67 Volts
Accel. ped. pos. 2: 4.35 Volts
Accel. ped. pos. 3: 4.04 Volts
Barometric pressure (BARO): 13.67 PSI
Battery voltage: 12.8 Volts
Fuel temperature: 109.7 F°
Intake air temp: 132.3 F°
Throttle position: 0 %
Turbo boost (Calculated): 0.73 PSI
Voltage reference sensor: 1.3 Volts
__________________________________________________________________
INJECTION PUMP SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Actual injection pump timing: 30.89 Deg °
Cam reference missed: 0 Counts
Crank reference missed: 0 Counts
Fuel calibration: 135 Counts
Fuel rate: 5.94 mm³
Fuel rate - Cruise: 0 mm³
Fuel rate - Idle: 5.94 mm³
Fuel rate - Maximum transient: 35 mm³
Fuel rate - Throttle requested: 0 mm³
Injection pulse width: 1.88 ms
Injection timing - Measured: 8.8 Deg °
Injection timing - Desired: 8.8 Deg °
TDC offset: -0.88 Deg °
__________________________________________________________________
TRANSMISSION SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
3-2 PWM solenoid duty cycle: 0 %
Cruise target speed: 0 MPH
Cruise speed error: 0 MPH
Current gear of transmission: 1 Gear
Current torque signal pressure: 25 PSI
Current transmission ratio: 1:4 Ratio
Error between desired and actual shift times for latest 1-2 upshift: 0 Sec
Error between desired and actual shift times for latest 2-3 upshift: 0 Sec
Force motor (PCS) - Duty cycle: 46.1 %
Force motor (PCS) - Feedback current: 0.82 Amps
Force motor (PCS) - Reference current: 0.82 Amps
Time of latest 1-2 upshift: 0 Sec
Time of latest 2-3 upshift: 0 Sec
TCC PWM solenoid duty cycle: 0 %
TCC slippage: -9 RPM
Transmission input speed: 610 RPM
Transmission output speed: 0 RPM
Transmission temperature: 159.8 F°
Turbine speed: 610 RPM
Vehicle speed: 0 MPH
__________________________________________________________________
STATUS FLAGS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Shift lever:
Park/Neutral
Cruise control:
Cruise Off condition
TCC mode word 1:
TCC is being forced off
TCC enable solenoid valid
Low threshold for COPETCC selected
Use hyst. for vehicle speed
TCC is in release mode, slipping
TCC is in locked-adjust mode
TCC is being applied
• Negative slip recently prevents apply
TCC mode word 2:
TCC PWM is on
Perform release
Perform apply
• Min. threshold occurred
TCC Bus. is valid
NDT occurs
Delay is in progress
Min. throttle occured
IOD port A:
Glow plug relay - Closed/Open
• Stepper motor inhibit - Run/Inhibit
Service Throttle Lamp - On/Off
EGR vent enable - On/Off
• Shift A - On/Off
Shift B - On/Off
TCC enable - On/Off (4L60E only)
• Force Motor enable - On/Off
IOD SOD status register:
Coolant temp. pullup select - On/Off
Trans. temp. pullup select - On/Off
Fuel calibration temp. select - On/Off
Check Engine Lamp - On/Off
PWM1 - Reset/Normal
PWM2 - Reset/Normal
PWM3 - Reset/Normal
PWM4 - Reset/Normal
System status word:
FM shut off due to low battery
Force Motor pulse in progress
• Power is On/Off
COP2 is being serviced
Delco instrumentation PROM
• Powertrain is in motion
Discrete flags:
• Brake - On/Off
A/C Compressor - Engaged/Disengaged
Power enrichment - Active/Inactive
Kickdown pattern - Active/Inactive
Four-Wheel Drive Low - Active/Inactive
Cruise low - Active/Inactive
Diagnostic - Requested/Not requested
ITD: 8.7
ITM: 8.7
Fuel Rate: 6.88
Actual IP Timing: 30-31
Since my original TDCO on my PCM/EPROM was -0.79 and now it set it to -0.88, does that indicate timing chain is worn? Enough to need replacing?
Here's a snapshot I took a few minutes after restarting it back at home:
Snapshot created 5/11/2009 1:11:30 PM
__________________________________________________________________
ENGINE SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Engine run time: 00:03:17
Boost pressure (MAP): 14.4 PSI
Desired EGR: 15.23 PSI
Desired idle: 600 RPM
EGR pressure: 14.58 PSI
EGR duty cycle: 0 %
Engine coolant temp: 189.2 F°
Engine speed: 581 RPM
Glow plug relay feedback: 0.1 Volts
Glow plug voltage: 0.1 Volts
Ignition voltage: 12.8 Volts
Wastegate duty cycle: 67.6 %
__________________________________________________________________
INFORMATION SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
PCM Calibration ID: 6865
Current DTCs: 0
Accel. ped. pos. 1: 0.67 Volts
Accel. ped. pos. 2: 4.35 Volts
Accel. ped. pos. 3: 4.04 Volts
Barometric pressure (BARO): 13.67 PSI
Battery voltage: 12.8 Volts
Fuel temperature: 109.7 F°
Intake air temp: 132.3 F°
Throttle position: 0 %
Turbo boost (Calculated): 0.73 PSI
Voltage reference sensor: 1.3 Volts
__________________________________________________________________
INJECTION PUMP SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Actual injection pump timing: 30.89 Deg °
Cam reference missed: 0 Counts
Crank reference missed: 0 Counts
Fuel calibration: 135 Counts
Fuel rate: 5.94 mm³
Fuel rate - Cruise: 0 mm³
Fuel rate - Idle: 5.94 mm³
Fuel rate - Maximum transient: 35 mm³
Fuel rate - Throttle requested: 0 mm³
Injection pulse width: 1.88 ms
Injection timing - Measured: 8.8 Deg °
Injection timing - Desired: 8.8 Deg °
TDC offset: -0.88 Deg °
__________________________________________________________________
TRANSMISSION SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
3-2 PWM solenoid duty cycle: 0 %
Cruise target speed: 0 MPH
Cruise speed error: 0 MPH
Current gear of transmission: 1 Gear
Current torque signal pressure: 25 PSI
Current transmission ratio: 1:4 Ratio
Error between desired and actual shift times for latest 1-2 upshift: 0 Sec
Error between desired and actual shift times for latest 2-3 upshift: 0 Sec
Force motor (PCS) - Duty cycle: 46.1 %
Force motor (PCS) - Feedback current: 0.82 Amps
Force motor (PCS) - Reference current: 0.82 Amps
Time of latest 1-2 upshift: 0 Sec
Time of latest 2-3 upshift: 0 Sec
TCC PWM solenoid duty cycle: 0 %
TCC slippage: -9 RPM
Transmission input speed: 610 RPM
Transmission output speed: 0 RPM
Transmission temperature: 159.8 F°
Turbine speed: 610 RPM
Vehicle speed: 0 MPH
__________________________________________________________________
STATUS FLAGS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Shift lever:
Park/Neutral
Cruise control:
Cruise Off condition
TCC mode word 1:
TCC is being forced off
TCC enable solenoid valid
Low threshold for COPETCC selected
Use hyst. for vehicle speed
TCC is in release mode, slipping
TCC is in locked-adjust mode
TCC is being applied
• Negative slip recently prevents apply
TCC mode word 2:
TCC PWM is on
Perform release
Perform apply
• Min. threshold occurred
TCC Bus. is valid
NDT occurs
Delay is in progress
Min. throttle occured
IOD port A:
Glow plug relay - Closed/Open
• Stepper motor inhibit - Run/Inhibit
Service Throttle Lamp - On/Off
EGR vent enable - On/Off
• Shift A - On/Off
Shift B - On/Off
TCC enable - On/Off (4L60E only)
• Force Motor enable - On/Off
IOD SOD status register:
Coolant temp. pullup select - On/Off
Trans. temp. pullup select - On/Off
Fuel calibration temp. select - On/Off
Check Engine Lamp - On/Off
PWM1 - Reset/Normal
PWM2 - Reset/Normal
PWM3 - Reset/Normal
PWM4 - Reset/Normal
System status word:
FM shut off due to low battery
Force Motor pulse in progress
• Power is On/Off
COP2 is being serviced
Delco instrumentation PROM
• Powertrain is in motion
Discrete flags:
• Brake - On/Off
A/C Compressor - Engaged/Disengaged
Power enrichment - Active/Inactive
Kickdown pattern - Active/Inactive
Four-Wheel Drive Low - Active/Inactive
Cruise low - Active/Inactive
Diagnostic - Requested/Not requested
ghitch75
livin' in the sticks
have you cleaned all the grounds?.....my burb gave me 7 kinds of fitts before i cleaned all the grounds....would give codes like lotto #'s......these trucks need clean and tight grounds to get all the info to the PCM.....just a thought...
gahammerle
Saved by God's grace
Yep, cleaned grounds and battery connections. That was the free & easy first shot, but didn't help.
gahammerle
Saved by God's grace
Also, just was out there and was getting 19 again, sometimes by itself, other times with 18.
buddy
Active Member
Have you kept the same PCM in there? Or gone back to your original?
gahammerle
Saved by God's grace
Still have the one you sent in there.
gahammerle
Saved by God's grace
Switched back to my original PCM/EPROM and did the relearn.
ITD: 16.9
ITM: 16.9
TDCO: -0.70
Actual IP Timing: 38-39
Fuel Rate: 5.something
About a minute or so after relearn, it died and coded 18.
So after the relearn on original, settings are same except TDCO went from -0.79 to -0.70. Relearn on your PCM/EPROM was -0.88. Maybe I don't understand TDCO fully - isn't that based on the physical position of the IP? So shouldn't it be the same regardless of which PCM/EPROM?
ITD: 16.9
ITM: 16.9
TDCO: -0.70
Actual IP Timing: 38-39
Fuel Rate: 5.something
About a minute or so after relearn, it died and coded 18.
So after the relearn on original, settings are same except TDCO went from -0.79 to -0.70. Relearn on your PCM/EPROM was -0.88. Maybe I don't understand TDCO fully - isn't that based on the physical position of the IP? So shouldn't it be the same regardless of which PCM/EPROM?
buddy
Active Member
The TDCO is variable, every time you do it will result a different result and it can be a huge difference. You can also stop the TDCO set when you see the value you want.
But your idle timing is terrible, there is something wrong with that EPROM. No way its stock programming.
Was looking at your snapshot and IAT was 132*F at idle? Thats high, what is it tell you when you first start up. Maybe your IAT sensor is bad, not isolated from engine temp.
How long have you had this truck? maybe PO tried an optic bump on the OS. which would cause some problems youre experiencing. Try opening up the IP and checking the OS position. Here are some references.
http://www.mamut.net/royh/newsdet9.htm
http://www.dieselplace.com/forum/showpost.php?p=331587&postcount=1
http://www.dieselplace.com/forum/showpost.php?p=332796&postcount=19
But your idle timing is terrible, there is something wrong with that EPROM. No way its stock programming.
Was looking at your snapshot and IAT was 132*F at idle? Thats high, what is it tell you when you first start up. Maybe your IAT sensor is bad, not isolated from engine temp.
How long have you had this truck? maybe PO tried an optic bump on the OS. which would cause some problems youre experiencing. Try opening up the IP and checking the OS position. Here are some references.
http://www.mamut.net/royh/newsdet9.htm
http://www.dieselplace.com/forum/showpost.php?p=331587&postcount=1
http://www.dieselplace.com/forum/showpost.php?p=332796&postcount=19
gahammerle
Saved by God's grace
IAT at startup on cold engine: 65.4 68*F outside temp
I've had the truck for just over a year. I'll take a look at the OS. Will I need a new gasket or anything to reinstall the top of the intake afterwards? And while I have that off, should I look at/do anything else?
I've had the truck for just over a year. I'll take a look at the OS. Will I need a new gasket or anything to reinstall the top of the intake afterwards? And while I have that off, should I look at/do anything else?
buddy
Active Member
I wouldnt worry about the intake gasket if it isnt tore up.
You should check out the IATs after or during some drives, to see if the sensor is reading reasonable, because it should no way be 132*F at idle, even if engine is warm. I have a tough time getting to 130* IAT until I get some sustained boost. But then it drops real fast.
You should check out the IATs after or during some drives, to see if the sensor is reading reasonable, because it should no way be 132*F at idle, even if engine is warm. I have a tough time getting to 130* IAT until I get some sustained boost. But then it drops real fast.
gahammerle
Saved by God's grace
Took the top of the intake off and discovered it had been modded - a metal plate was placed under the center gasket and all the extra material had been cut out of the top of the intake.
I tried getting to the OS but can't get the torx bolts to turn. The one link says it's a T27 but the T27 I have didn't fit - even after cleaning the heads - and I had a T25 that was a loose fit. I got one to start turning but then it stripped. Any idea how to remove a stripped torx bolt?
Since I had access I removed the OS filter and will see how it does without that.
What's the torque spec for the top intake bolts and is there a specific sequence for tightening?
I suspect with all the mods that I've discovered on the truck that it probably does have the OS bump but I won't be able to verify that unless I can get those torx bolts out.
I tried getting to the OS but can't get the torx bolts to turn. The one link says it's a T27 but the T27 I have didn't fit - even after cleaning the heads - and I had a T25 that was a loose fit. I got one to start turning but then it stripped.
Any idea how to remove a stripped torx bolt?Since I had access I removed the OS filter and will see how it does without that.
What's the torque spec for the top intake bolts and is there a specific sequence for tightening?
I suspect with all the mods that I've discovered on the truck that it probably does have the OS bump but I won't be able to verify that unless I can get those torx bolts out.
gahammerle
Saved by God's grace
Found the torque specs for the intake: 32.
buddy
Active Member
The EGR was removed is what youre saying, the EGR is a big restirction in there and people cut away its channels and block off the top.
I dont have experience with the IP torx screws, some poeple here should though.
To remove stripped screws there are kits for that, like $20 I think. I have seen them used before to remove stuff.
I dont have experience with the IP torx screws, some poeple here should though.
To remove stripped screws there are kits for that, like $20 I think. I have seen them used before to remove stuff.
gahammerle
Saved by God's grace
I haven't got the torx screws out yet, but I put the upper plenum back on. I have the OS filter removed with harness plugged in. Took it on a longer drive and it did fine - except for a very loud turbo whistle. Never had that before - I'm guessing my gasket shouldn't have been reused or I put the EGR blocker plate back in wrong. Maybe not really turbo whistle but a pressurized air leak? Didn't hear it until boost hit about 2.
Anyway, it ran fine while driving, but back home in the driveway, revved it up to 2,000 rpm and held it for a few seconds and it died with codes 18 & 19. Cleared those and restarted. Ran for about 30 seconds at idle then died and coded 19. Would disconnecting the crank position sensor be a good test? If it runs fine with no codes with that disconnected, would that indicate a bad CPS?
Here's a snapshot when I was running up a small hill at about 3,000 rpm. IAT got up to 154. Following that is snapshot after I was back home in the driveway and right before it died.
Snapshot created 5/19/2009 4:47:57 PM
__________________________________________________________________
ENGINE SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Engine run time: 00:23:43
Boost pressure (MAP): 18.74 PSI
Desired EGR: 15.23 PSI
Desired idle: 600 RPM
EGR pressure: 14.58 PSI
EGR duty cycle: 0 %
Engine coolant temp: 187.3 F°
Engine speed: 2906 RPM
Glow plug relay feedback: 0.1 Volts
Glow plug voltage: 0.1 Volts
Ignition voltage: 13.4 Volts
Wastegate duty cycle: 38.3 %
__________________________________________________________________
INFORMATION SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
PCM Calibration ID: 6865
Current DTCs: 0
Accel. ped. pos. 1: 1.92 Volts
Accel. ped. pos. 2: 3.1 Volts
Accel. ped. pos. 3: 3.29 Volts
Barometric pressure (BARO): 13.67 PSI
Battery voltage: 13.3 Volts
Fuel temperature: 103.8 F°
Intake air temp: 154 F°
Throttle position: 44 %
Turbo boost (Calculated): 5.07 PSI
Voltage reference sensor: 1.3 Volts
__________________________________________________________________
INJECTION PUMP SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Actual injection pump timing: 35.29 Deg °
Cam reference missed: 0 Counts
Crank reference missed: 0 Counts
Fuel calibration: 135 Counts
Fuel rate: 49.06 mm³
Fuel rate - Cruise: 0 mm³
Fuel rate - Idle: 0 mm³
Fuel rate - Maximum transient: 62.5 mm³
Fuel rate - Throttle requested: 58.12 mm³
Injection pulse width: 1.68 ms
Injection timing - Measured: 12.8 Deg °
Injection timing - Desired: 12.7 Deg °
TDC offset: -0.88 Deg °
__________________________________________________________________
TRANSMISSION SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
3-2 PWM solenoid duty cycle: 0 %
Cruise target speed: 0 MPH
Cruise speed error: 0 MPH
Current gear of transmission: 3 Gear
Current torque signal pressure: 61 PSI
Current transmission ratio: 1:1.48 Ratio
Error between desired and actual shift times for latest 1-2 upshift: 0.08 Sec
Error between desired and actual shift times for latest 2-3 upshift: 6.38 Sec
Force motor (PCS) - Duty cycle: 30.1 %
Force motor (PCS) - Feedback current: 0.55 Amps
Force motor (PCS) - Reference current: 0.57 Amps
Time of latest 1-2 upshift: 0.35 Sec
Time of latest 2-3 upshift: 0.32 Sec
TCC PWM solenoid duty cycle: 0 %
TCC slippage: 238 RPM
Transmission input speed: 2651 RPM
Transmission output speed: 1789 RPM
Transmission temperature: 142.2 F°
Turbine speed: 2651 RPM
Vehicle speed: 39 MPH
__________________________________________________________________
STATUS FLAGS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Shift lever:
Drive 4
Cruise control:
Disengage condition
TCC mode word 1:
TCC is being forced off
TCC enable solenoid valid
Low threshold for COPETCC selected
• Use hyst. for vehicle speed
TCC is in release mode, slipping
TCC is in locked-adjust mode
TCC is being applied
Negative slip recently prevents apply
TCC mode word 2:
TCC PWM is on
• Perform release
Perform apply
Min. threshold occurred
TCC Bus. is valid
NDT occurs
Delay is in progress
Min. throttle occured
IOD port A:
Glow plug relay - Closed/Open
• Stepper motor inhibit - Run/Inhibit
Service Throttle Lamp - On/Off
EGR vent enable - On/Off
Shift A - On/Off
• Shift B - On/Off
TCC enable - On/Off (4L60E only)
• Force Motor enable - On/Off
IOD SOD status register:
Coolant temp. pullup select - On/Off
Trans. temp. pullup select - On/Off
Fuel calibration temp. select - On/Off
Check Engine Lamp - On/Off
PWM1 - Reset/Normal
PWM2 - Reset/Normal
PWM3 - Reset/Normal
PWM4 - Reset/Normal
System status word:
FM shut off due to low battery
Force Motor pulse in progress
• Power is On/Off
COP2 is being serviced
Delco instrumentation PROM
• Powertrain is in motion
Discrete flags:
Brake - On/Off
A/C Compressor - Engaged/Disengaged
Power enrichment - Active/Inactive
Kickdown pattern - Active/Inactive
Four-Wheel Drive Low - Active/Inactive
Cruise low - Active/Inactive
Diagnostic - Requested/Not requested
__________________________________________________________________
GMTDScan Tech © Engh Motors - www.EnghMotors.com
back home and idling in driveway before coding 18 & 19.
Snapshot created 5/19/2009 4:51:54 PM
__________________________________________________________________
ENGINE SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Engine run time: 00:27:40
Boost pressure (MAP): 14.4 PSI
Desired EGR: 15.23 PSI
Desired idle: 600 RPM
EGR pressure: 14.58 PSI
EGR duty cycle: 0 %
Engine coolant temp: 187.3 F°
Engine speed: 600 RPM
Glow plug relay feedback: 0.1 Volts
Glow plug voltage: 0.1 Volts
Ignition voltage: 13.2 Volts
Wastegate duty cycle: 67.2 %
__________________________________________________________________
INFORMATION SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
PCM Calibration ID: 6865
Current DTCs: 0
Accel. ped. pos. 1: 0.67 Volts
Accel. ped. pos. 2: 4.35 Volts
Accel. ped. pos. 3: 4.04 Volts
Barometric pressure (BARO): 13.72 PSI
Battery voltage: 13.2 Volts
Fuel temperature: 108.1 F°
Intake air temp: 112.6 F°
Throttle position: 0 %
Turbo boost (Calculated): 0.68 PSI
Voltage reference sensor: 1.3 Volts
__________________________________________________________________
INJECTION PUMP SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Actual injection pump timing: 30.98 Deg °
Cam reference missed: 0 Counts
Crank reference missed: 0 Counts
Fuel calibration: 135 Counts
Fuel rate: 5 mm³
Fuel rate - Cruise: 0 mm³
Fuel rate - Idle: 5 mm³
Fuel rate - Maximum transient: 35 mm³
Fuel rate - Throttle requested: 0 mm³
Injection pulse width: 1.82 ms
Injection timing - Measured: 8.8 Deg °
Injection timing - Desired: 9 Deg °
TDC offset: -0.88 Deg °
__________________________________________________________________
TRANSMISSION SENSORS
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3-2 PWM solenoid duty cycle: 0 %
Cruise target speed: 0 MPH
Cruise speed error: 0 MPH
Current gear of transmission: 1 Gear
Current torque signal pressure: 25 PSI
Current transmission ratio: 1:4 Ratio
Error between desired and actual shift times for latest 1-2 upshift: 0.18 Sec
Error between desired and actual shift times for latest 2-3 upshift: 6.35 Sec
Force motor (PCS) - Duty cycle: 45.7 %
Force motor (PCS) - Feedback current: 0.84 Amps
Force motor (PCS) - Reference current: 0.82 Amps
Time of latest 1-2 upshift: 0.25 Sec
Time of latest 2-3 upshift: 0.35 Sec
TCC PWM solenoid duty cycle: 0 %
TCC slippage: 2 RPM
Transmission input speed: 600 RPM
Transmission output speed: 0 RPM
Transmission temperature: 154.4 F°
Turbine speed: 600 RPM
Vehicle speed: 0 MPH
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STATUS FLAGS
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Shift lever:
Park/Neutral
Cruise control:
Cruise Off condition
TCC mode word 1:
TCC is being forced off
TCC enable solenoid valid
Low threshold for COPETCC selected
Use hyst. for vehicle speed
TCC is in release mode, slipping
TCC is in locked-adjust mode
TCC is being applied
Negative slip recently prevents apply
TCC mode word 2:
TCC PWM is on
Perform release
Perform apply
• Min. threshold occurred
TCC Bus. is valid
NDT occurs
Delay is in progress
Min. throttle occured
IOD port A:
Glow plug relay - Closed/Open
• Stepper motor inhibit - Run/Inhibit
Service Throttle Lamp - On/Off
EGR vent enable - On/Off
• Shift A - On/Off
Shift B - On/Off
TCC enable - On/Off (4L60E only)
• Force Motor enable - On/Off
IOD SOD status register:
Coolant temp. pullup select - On/Off
Trans. temp. pullup select - On/Off
Fuel calibration temp. select - On/Off
Check Engine Lamp - On/Off
PWM1 - Reset/Normal
PWM2 - Reset/Normal
PWM3 - Reset/Normal
PWM4 - Reset/Normal
System status word:
FM shut off due to low battery
Force Motor pulse in progress
• Power is On/Off
COP2 is being serviced
Delco instrumentation PROM
• Powertrain is in motion
Discrete flags:
Brake - On/Off
A/C Compressor - Engaged/Disengaged
Power enrichment - Active/Inactive
Kickdown pattern - Active/Inactive
Four-Wheel Drive Low - Active/Inactive
Cruise low - Active/Inactive
Diagnostic - Requested/Not requested
__________________________________________________________________
GMTDScan Tech © Engh Motors - www.EnghMotors.com
Anyway, it ran fine while driving, but back home in the driveway, revved it up to 2,000 rpm and held it for a few seconds and it died with codes 18 & 19. Cleared those and restarted. Ran for about 30 seconds at idle then died and coded 19. Would disconnecting the crank position sensor be a good test? If it runs fine with no codes with that disconnected, would that indicate a bad CPS?
Here's a snapshot when I was running up a small hill at about 3,000 rpm. IAT got up to 154. Following that is snapshot after I was back home in the driveway and right before it died.
Snapshot created 5/19/2009 4:47:57 PM
__________________________________________________________________
ENGINE SENSORS
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Engine run time: 00:23:43
Boost pressure (MAP): 18.74 PSI
Desired EGR: 15.23 PSI
Desired idle: 600 RPM
EGR pressure: 14.58 PSI
EGR duty cycle: 0 %
Engine coolant temp: 187.3 F°
Engine speed: 2906 RPM
Glow plug relay feedback: 0.1 Volts
Glow plug voltage: 0.1 Volts
Ignition voltage: 13.4 Volts
Wastegate duty cycle: 38.3 %
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INFORMATION SENSORS
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PCM Calibration ID: 6865
Current DTCs: 0
Accel. ped. pos. 1: 1.92 Volts
Accel. ped. pos. 2: 3.1 Volts
Accel. ped. pos. 3: 3.29 Volts
Barometric pressure (BARO): 13.67 PSI
Battery voltage: 13.3 Volts
Fuel temperature: 103.8 F°
Intake air temp: 154 F°
Throttle position: 44 %
Turbo boost (Calculated): 5.07 PSI
Voltage reference sensor: 1.3 Volts
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INJECTION PUMP SENSORS
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Actual injection pump timing: 35.29 Deg °
Cam reference missed: 0 Counts
Crank reference missed: 0 Counts
Fuel calibration: 135 Counts
Fuel rate: 49.06 mm³
Fuel rate - Cruise: 0 mm³
Fuel rate - Idle: 0 mm³
Fuel rate - Maximum transient: 62.5 mm³
Fuel rate - Throttle requested: 58.12 mm³
Injection pulse width: 1.68 ms
Injection timing - Measured: 12.8 Deg °
Injection timing - Desired: 12.7 Deg °
TDC offset: -0.88 Deg °
__________________________________________________________________
TRANSMISSION SENSORS
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3-2 PWM solenoid duty cycle: 0 %
Cruise target speed: 0 MPH
Cruise speed error: 0 MPH
Current gear of transmission: 3 Gear
Current torque signal pressure: 61 PSI
Current transmission ratio: 1:1.48 Ratio
Error between desired and actual shift times for latest 1-2 upshift: 0.08 Sec
Error between desired and actual shift times for latest 2-3 upshift: 6.38 Sec
Force motor (PCS) - Duty cycle: 30.1 %
Force motor (PCS) - Feedback current: 0.55 Amps
Force motor (PCS) - Reference current: 0.57 Amps
Time of latest 1-2 upshift: 0.35 Sec
Time of latest 2-3 upshift: 0.32 Sec
TCC PWM solenoid duty cycle: 0 %
TCC slippage: 238 RPM
Transmission input speed: 2651 RPM
Transmission output speed: 1789 RPM
Transmission temperature: 142.2 F°
Turbine speed: 2651 RPM
Vehicle speed: 39 MPH
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STATUS FLAGS
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Shift lever:
Drive 4
Cruise control:
Disengage condition
TCC mode word 1:
TCC is being forced off
TCC enable solenoid valid
Low threshold for COPETCC selected
• Use hyst. for vehicle speed
TCC is in release mode, slipping
TCC is in locked-adjust mode
TCC is being applied
Negative slip recently prevents apply
TCC mode word 2:
TCC PWM is on
• Perform release
Perform apply
Min. threshold occurred
TCC Bus. is valid
NDT occurs
Delay is in progress
Min. throttle occured
IOD port A:
Glow plug relay - Closed/Open
• Stepper motor inhibit - Run/Inhibit
Service Throttle Lamp - On/Off
EGR vent enable - On/Off
Shift A - On/Off
• Shift B - On/Off
TCC enable - On/Off (4L60E only)
• Force Motor enable - On/Off
IOD SOD status register:
Coolant temp. pullup select - On/Off
Trans. temp. pullup select - On/Off
Fuel calibration temp. select - On/Off
Check Engine Lamp - On/Off
PWM1 - Reset/Normal
PWM2 - Reset/Normal
PWM3 - Reset/Normal
PWM4 - Reset/Normal
System status word:
FM shut off due to low battery
Force Motor pulse in progress
• Power is On/Off
COP2 is being serviced
Delco instrumentation PROM
• Powertrain is in motion
Discrete flags:
Brake - On/Off
A/C Compressor - Engaged/Disengaged
Power enrichment - Active/Inactive
Kickdown pattern - Active/Inactive
Four-Wheel Drive Low - Active/Inactive
Cruise low - Active/Inactive
Diagnostic - Requested/Not requested
__________________________________________________________________
GMTDScan Tech © Engh Motors - www.EnghMotors.com
back home and idling in driveway before coding 18 & 19.
Snapshot created 5/19/2009 4:51:54 PM
__________________________________________________________________
ENGINE SENSORS
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Engine run time: 00:27:40
Boost pressure (MAP): 14.4 PSI
Desired EGR: 15.23 PSI
Desired idle: 600 RPM
EGR pressure: 14.58 PSI
EGR duty cycle: 0 %
Engine coolant temp: 187.3 F°
Engine speed: 600 RPM
Glow plug relay feedback: 0.1 Volts
Glow plug voltage: 0.1 Volts
Ignition voltage: 13.2 Volts
Wastegate duty cycle: 67.2 %
__________________________________________________________________
INFORMATION SENSORS
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PCM Calibration ID: 6865
Current DTCs: 0
Accel. ped. pos. 1: 0.67 Volts
Accel. ped. pos. 2: 4.35 Volts
Accel. ped. pos. 3: 4.04 Volts
Barometric pressure (BARO): 13.72 PSI
Battery voltage: 13.2 Volts
Fuel temperature: 108.1 F°
Intake air temp: 112.6 F°
Throttle position: 0 %
Turbo boost (Calculated): 0.68 PSI
Voltage reference sensor: 1.3 Volts
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INJECTION PUMP SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Actual injection pump timing: 30.98 Deg °
Cam reference missed: 0 Counts
Crank reference missed: 0 Counts
Fuel calibration: 135 Counts
Fuel rate: 5 mm³
Fuel rate - Cruise: 0 mm³
Fuel rate - Idle: 5 mm³
Fuel rate - Maximum transient: 35 mm³
Fuel rate - Throttle requested: 0 mm³
Injection pulse width: 1.82 ms
Injection timing - Measured: 8.8 Deg °
Injection timing - Desired: 9 Deg °
TDC offset: -0.88 Deg °
__________________________________________________________________
TRANSMISSION SENSORS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
3-2 PWM solenoid duty cycle: 0 %
Cruise target speed: 0 MPH
Cruise speed error: 0 MPH
Current gear of transmission: 1 Gear
Current torque signal pressure: 25 PSI
Current transmission ratio: 1:4 Ratio
Error between desired and actual shift times for latest 1-2 upshift: 0.18 Sec
Error between desired and actual shift times for latest 2-3 upshift: 6.35 Sec
Force motor (PCS) - Duty cycle: 45.7 %
Force motor (PCS) - Feedback current: 0.84 Amps
Force motor (PCS) - Reference current: 0.82 Amps
Time of latest 1-2 upshift: 0.25 Sec
Time of latest 2-3 upshift: 0.35 Sec
TCC PWM solenoid duty cycle: 0 %
TCC slippage: 2 RPM
Transmission input speed: 600 RPM
Transmission output speed: 0 RPM
Transmission temperature: 154.4 F°
Turbine speed: 600 RPM
Vehicle speed: 0 MPH
__________________________________________________________________
STATUS FLAGS
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Shift lever:
Park/Neutral
Cruise control:
Cruise Off condition
TCC mode word 1:
TCC is being forced off
TCC enable solenoid valid
Low threshold for COPETCC selected
Use hyst. for vehicle speed
TCC is in release mode, slipping
TCC is in locked-adjust mode
TCC is being applied
Negative slip recently prevents apply
TCC mode word 2:
TCC PWM is on
Perform release
Perform apply
• Min. threshold occurred
TCC Bus. is valid
NDT occurs
Delay is in progress
Min. throttle occured
IOD port A:
Glow plug relay - Closed/Open
• Stepper motor inhibit - Run/Inhibit
Service Throttle Lamp - On/Off
EGR vent enable - On/Off
• Shift A - On/Off
Shift B - On/Off
TCC enable - On/Off (4L60E only)
• Force Motor enable - On/Off
IOD SOD status register:
Coolant temp. pullup select - On/Off
Trans. temp. pullup select - On/Off
Fuel calibration temp. select - On/Off
Check Engine Lamp - On/Off
PWM1 - Reset/Normal
PWM2 - Reset/Normal
PWM3 - Reset/Normal
PWM4 - Reset/Normal
System status word:
FM shut off due to low battery
Force Motor pulse in progress
• Power is On/Off
COP2 is being serviced
Delco instrumentation PROM
• Powertrain is in motion
Discrete flags:
Brake - On/Off
A/C Compressor - Engaged/Disengaged
Power enrichment - Active/Inactive
Kickdown pattern - Active/Inactive
Four-Wheel Drive Low - Active/Inactive
Cruise low - Active/Inactive
Diagnostic - Requested/Not requested
__________________________________________________________________
GMTDScan Tech © Engh Motors - www.EnghMotors.com
buddy
Active Member
Does not sound like an actual CPS problem. You get some ghost codes from other things like air leaks when they hit the OS. However I would be willing to bet this has something to do with an optical bump gone awry, or it has made it more sensitive. This is why truck will run with OS unplugged, but dies when OS is plugged in, because when it sees air it shuts down truck. OS is in the calculations to set DTC 18 and 19.
I would focus on the OS, whether it be the OS itself, or something distrurbing it, like an air pocket hitting it.
cant remember how much air leak checking has been done.
So rerun LP tests, what is pressure, maybe leave pressure guage in window taped to wiper. Making sure its well secured/connected. Loosen fuel cap, make sure its a diesel cap. See if there are any crumbling or torn fuel hoses, best to drop fuel tank to look at lines going into it.
I would focus on the OS, whether it be the OS itself, or something distrurbing it, like an air pocket hitting it.
cant remember how much air leak checking has been done.
So rerun LP tests, what is pressure, maybe leave pressure guage in window taped to wiper. Making sure its well secured/connected. Loosen fuel cap, make sure its a diesel cap. See if there are any crumbling or torn fuel hoses, best to drop fuel tank to look at lines going into it.
gahammerle
Saved by God's grace
I had not tried running with the OS completely unplugged. I did remove the OS filter harness, but I plugged the OS back in without the filter. So I just went out and tried it with the OS completely unplugged. It coded 17, 18, 35, & 43 immediately and immediately after clearing them, they would come back again. So I let it warm up (ECT @ 187) and took it for a drive. This time it was stumbling upon hard acceleration around 3,000 rpm whereas it wasn't with the OS plugged in. It didn't stall though. When I got back home, I let it idle for a few minutes and then ran it up to 2,000 rpm and held it there for about 15 seconds before letting it idle for a few minutes again.
It never did die, so I think you are on the right track.
While it was idling, I opened the t-valve and got a good stream of fuel out and truck kept running, turned off truck and hooked up the fuel pressure gauge to the drain line and started it back up. It was reading 4.5 psi at idle, but the connection at the t-handle was leaking - drain line isn't clamped and once the fuel made it to the gauge I guess it didn't have anywhere else to go.
I need to go out and get some longer fuel line so I can tape it to the windshield and check it while driving.
I probably won't have time to drop the tank to check lines or open up the OS to check if it was bumped until Saturday.
It never did die, so I think you are on the right track.
While it was idling, I opened the t-valve and got a good stream of fuel out and truck kept running, turned off truck and hooked up the fuel pressure gauge to the drain line and started it back up. It was reading 4.5 psi at idle, but the connection at the t-handle was leaking - drain line isn't clamped and once the fuel made it to the gauge I guess it didn't have anywhere else to go.
I need to go out and get some longer fuel line so I can tape it to the windshield and check it while driving.
I probably won't have time to drop the tank to check lines or open up the OS to check if it was bumped until Saturday.
buddy
Active Member
17, 18 and 43 is expected with OS unplugged, that means the CPS is working, because it sees that the OS is not working. PCM needs one or the other for a timing reference or it wont run. Its in limp mode with either broke, so thats why it sucks at speed.
Good luck with the hunt, air leaks can be really tough.
Good luck with the hunt, air leaks can be really tough.