93 and older question.

[jbsaxman]

Thanks, Midnite.

Ultimately I'd like to rewire my truck altogether to make it simpler. I'm hoping to find a Cruise control module and setup from another rig. I've heard that a gasser CCM would work? Can anyone confirm or debunk this?

I could care less if the services engine light and the throttle light work. I'll have gauges for everything (like a diesel SHOULD have) so I can monitor the motor that way.

 

[daustin]

93 FSM says

Well i decided to have a look at the '93 FSM and see what it says. I scanned 2 pages, first for all '93 diesels and second for '93 with manual tranny. I would attach these, but the scans exceed the file limit size. Seems pretty clear i was mistaken on some points (not alone there though) lol If you want to see these, pm me and i'll email it to ya.
Control Module Description: PG 6E2-5, FSM X-9331
Control Module (ECM with manual or PCM with Auto) S or F Vin
1. Map sensor
2. ECT Sensor
3. MIL - Check Engine Light
4. EGR valve
5. EGR Solenoid
6. TP sensor
7. Engine Speed Sensor
8. DLC - Data Link Connector
9. TCC Solenoid
10. VSS Sensor
11. Cold Advance Relay
12. Cold Advance Solenoid
13. Glow Plug Control Switch
14. Automatic Tranny Controls

Control Module Description: PG 6E2-10, FSM X-9331
ECM controls the following:
1. EGR - S Vin
2. EPR - S Vin
3. System Diagnosis
4. Cold Advance and Glow Plugs
ECM Monitors the following:
1. Engine RPM
2. MAP sensor - used to monitor Vacumn for EGR - S Vin
3. TPS
4. VSS
5. ECT

Wish I could figure out how to scan these pages in a smaller file.
Don

 

[jbsaxman]

Just scan them the put them on someplace like Flikr or Photobucket. You can add a link here for those images.

 

[midniteplowboyy]

They didn't make "S" vin that I'm aware of in 93(maybe cali), only the vin "F" 6.5 and vin "J" or "C" 6.2's.

1993 TCM(transmission control module) pinouts,

 

[jbsaxman]

Ok, since I have an NV4500 then I probably wouldn't need a the TCM.

 

[daustin]

I think what they referred to as S Vin was California with emissions. My books cover all emissions but at times don't seperate. You should be ok if you do a manual glow/cold advance circuit, not sure about the VSS as my manual lists that as ECM input.
Don

 

[jbsaxman]

I guess in the worst case, if I need to have the ECM for the VSSB, I can just severe the connection to the ECM on everything but the VSSB.

 

[Ratman]

Jake, your '94 ECM controls the glow relay by using data acquired from the CTS, -which in my opinion, is a painless way to run your glows.

I left mine intact when I did my DB2, and it works flawlessly.

I'm all for ripping the ECM out, -but you may want to reconsider since the ECM does do a fine job of running the glow circuit.

The only thing that does NOT function correctly is afterglow, -which always worked flawlessly when the DS pump and harness was intact. With half of the plugs disconnected on my ECM, afterglow does not currently work, -but it's not really that big of a deal, -even with 18:1.