66 c10 w/ LQ4 code U0107 problem
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Teching In
Joined: May 2010
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From: BREW CITY, WI
66 c10 w/ LQ4 code U0107 problem I did my first startup on the new engine today, and although everything ran pretty great, I did run into an issue with this code.
When I go to rev the truck using the DBW pedal, it looses communication. I'm able to rev it ONCE (seems to work fine, and the engine sounds great), but then it loses communication with the pedal and throws this code. I check simple stuff like the fuse but it seems fine. The code U0107 is the only code that comes up. Help is really appreciated! I've been working on this thing for almost 2 years now!
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When I go to rev the truck using the DBW pedal, it looses communication. I'm able to rev it ONCE (seems to work fine, and the engine sounds great), but then it loses communication with the pedal and throws this code. I check simple stuff like the fuse but it seems fine. The code U0107 is the only code that comes up. Help is really appreciated! I've been working on this thing for almost 2 years now!
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[/IMG] Thread Starter
Teching In
Joined: May 2010
Posts: 38
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From: BREW CITY, WI
ecm is a green/blue type, tuner said it was an 04 unit.
The harness is a custom build harness from Fuel Injection Connection.
The dbw unit and tac were bought together, but I don't 100% know what year its from.
The harness is a custom build harness from Fuel Injection Connection.
The dbw unit and tac were bought together, but I don't 100% know what year its from.
Definitley sounds like a TAC/ PCM tune incompatibility problem to me. My truck was doing the same thing back when I was changing tunes while trying to get the A/C to work through the PCM. Once I went back to all matching components (PCM, TAC and pedal) it worked the way it should. Whats the part number on your TAC module? And is your pedal the metal type or plastic? 2004 TAc should be a #12573059, and the pedal should be metal.
Thread Starter
Teching In
Joined: May 2010
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From: BREW CITY, WI
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Verdad Gallardo So did you buy a pedal and TAC as a pair? I could use a 2006-7 setup provided it's the correct part number if you want to do some trading. I can send you a TAC and pedal, you can try it and make sure it fixes the problem, if it doesn't you can send it back. Just let me know.
Teching In
Joined: Oct 2017
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From: Indiana
So I'm having teh same problem with a variation. I've got a 2005 Avalance engine and transmission in my swap, It works sometimes, We've been driving it since Feb and all the sudden it started.
I have swaped modules with my 2004 pickup and had the same problem, All the P/N match for a 2005 engine, I have ran all the wiring, even ran a new ground and shortened all the 12v lines.
Did anybody post their solution
I have swaped modules with my 2004 pickup and had the same problem, All the P/N match for a 2005 engine, I have ran all the wiring, even ran a new ground and shortened all the 12v lines.
Did anybody post their solution
