C10 DBW TAC problems
Thread Starter
Teching In
Joined: Jan 2009
Posts: 37
Likes: 2
From: Ionia, Michigan
C10 DBW TAC problems Using a P59, 2003 Yukon base tune. 6.0 LQ4 engine.
I have 2 different metal backed TAC modules here. Trying to use a 6.5 diesel pedal for bolt in ability to my firewall.
I pulled both TAC's and harnesses myself. Both from 2003 Silverado's. One is a 6 wire I completely botched the repinning of. Truck would start and idle, no throttle response.
So I grabbed another pedal/TAC/TB/TAC harness for trouble shooting. It has throttle response, will start and idle, then loses communication. Found a broken wire on it. Also found out it has 8 wires, instead of 6 like the other one.
So... Which harness is the proper one to use with a 6.5 pedal? Are they interchangeable on the 2003 TAC module? And how exactly is it supposed to be repinned for the 6.5 pedal, because I find conflicting information everywhere.
I have 2 different metal backed TAC modules here. Trying to use a 6.5 diesel pedal for bolt in ability to my firewall.
I pulled both TAC's and harnesses myself. Both from 2003 Silverado's. One is a 6 wire I completely botched the repinning of. Truck would start and idle, no throttle response.
So I grabbed another pedal/TAC/TB/TAC harness for trouble shooting. It has throttle response, will start and idle, then loses communication. Found a broken wire on it. Also found out it has 8 wires, instead of 6 like the other one.
So... Which harness is the proper one to use with a 6.5 pedal? Are they interchangeable on the 2003 TAC module? And how exactly is it supposed to be repinned for the 6.5 pedal, because I find conflicting information everywhere.
Yes. like stated above u need a matching pedal and tac module. If they don't match up correctly u will have issues. I've had issues with them not matching the same yr ecu. Just modifie a 2003 dbw pedal and bolt it into the c10. I do it all the time.
OR get u a drive by cable harness, Cable tb, and a stock Silverado throttle cable. Thin u can reuse the original gas pedal etc. Easy peasy!!!
OR get u a drive by cable harness, Cable tb, and a stock Silverado throttle cable. Thin u can reuse the original gas pedal etc. Easy peasy!!!
Thread Starter
Teching In
Joined: Jan 2009
Posts: 37
Likes: 2
From: Ionia, Michigan
Lol.
The answer, I figured out myself, is the 9 wire harness is 03-05.
To use the 9 wire 03-05 harness with a 6.5 diesel pedal,you switch,at the pedal side, pins A and J. Put A where J is,and vise versa.
Hopefully this helps someone in the future.
The answer, I figured out myself, is the 9 wire harness is 03-05.
To use the 9 wire 03-05 harness with a 6.5 diesel pedal,you switch,at the pedal side, pins A and J. Put A where J is,and vise versa.
Hopefully this helps someone in the future.
Staging Lane
Joined: Mar 2016
Posts: 70
Likes: 1
