Big T
Well-Known Member
Which direction do I move the IP?
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TDC -2.46
- Thread starter Big T
- Start date
Big T
Well-Known Member
I am able to clear the TDC by holding the accelerator pedal down with ignition on for 45+ second, then ignition off for 30+ seconds. It goes to 0.00 on GM Tech 2. Then I do a relearn and it goes right to -2.46. Moved the IP noticeable to the passenger side and same thing: goes to -2.46.
Big T
Well-Known Member
I have the Tech 2 Scan. I select TDC learn, then turn Command ON and it goes to -2.46.
NVW
Well-Known Member
I must be having an "Old Timers Moment" cause I was thinking it was the opposite way around?
MrMarty51
Well-Known Member
Moving the IP towards the drivers side increases the TDC - numbers.
If it is at -1.00 and You want -1.50 then rotate the top towards the drivers side.
IIRC
If it is at -1.00 and You want -1.50 then rotate the top towards the drivers side.
IIRC
Big T
Well-Known Member
Moving the IP towards the drivers side increases the TDC - numbers.
If it is at -1.00 and You want -1.50 then rotate the top towards the drivers side.
IIRC
I'm looking for input on proper use of the Tech 2. Right now I keep getting the same result no matter where I move the IP.
dbrannon79
I'm getting there!
when I returned mine to normal (-0.67) I started at -1.68 I ended up rotating the IP (standing in front of the truck) to my clockwise by a hair. had to do it about three times to get it closer to 0 from -1.68 if that will help you any. I was thinking turn it top side toward the passenger fender, it went to -2.0. turning it back top side towards to drivers fender (my clockwise) the numbers started going closer to 0 from higher negative if that makes any sense
MrMarty51
Well-Known Member
I followed AKdiesel drivers tool. Used a reversible gear wrench, sawed off the box end and welded together a series of old wrench handles to get it to a usable configuration.
Then using a large channel lock pliers, rotate the pump and hold it in position and tighten the bolts. Warm the engine good, do another timing reset and see where it goes.
I found the biggest thing is to hold the pump while getting at least two bolts tight before releasing the pliers from the pump.
Then using a large channel lock pliers, rotate the pump and hold it in position and tighten the bolts. Warm the engine good, do another timing reset and see where it goes.
I found the biggest thing is to hold the pump while getting at least two bolts tight before releasing the pliers from the pump.
MrMarty51
Well-Known Member
I could not turn and hold the pump with My hands. It would just rotate back to where it previously was before I could get the bolts tight.
dbrannon79
I'm getting there!
Yeah I had that problem too. I was able to use a regular gear wrench to loosen all three nuts on the IP. I would leave the top one slightly snug so the IP didn't move too easy. this allowed it to turn with some resistance, while holding it with channel locks I tightened the top one and one side nut, cranked her up ran the relearn, the do it again till I got it within spec. the third nut I left loose till I got it set where I wanted it since I have to remove the upper intake to get the gear wrench in there.