budhayes3

iTrader: (19)

Maybe try swapping the pedal from your other vehicle...

Jim_PA

iTrader: (8)

Was going to, but it has all the adjustable pedal stuff on it.

I ordered an APP sensor for an '03, we'll see if that works. Different PN than for an '04, so we'll see.

budhayes3

iTrader: (19)

Roger that, keep us updated on how you make out

dmelvin

iTrader: (8)

This is why I don't like all that fancy DBW stuff.

Good luck with your fix.

double047

iTrader: (15)

Wow man, hope this fixes it, your running out of things it could be.

Jim_PA

iTrader: (8)

Although the 03 and 04 APP sensors are different PN's, they both seem to operate about the same way. At rest, TPS is registering about 20% by half throttle, it's up to 100%.

What's next???? New pedal assmbly from an '03 GMC?? I think the pedal I have now is from an '04 2500 Silverado.

New assembly was already suggested, but I haven't seen any indication as to why a different one would solve the problem, or how I can tell for sure which one I need to get.

aknovaman

iTrader: (7)

Simply match the PCM file and operating system with the TACC and you should be ok.

Jim_PA

iTrader: (8)

Well, the PCM file is the easy part to identify. Tac modules and pedals aren't so easy to figure out what matches what.

I am eying up a Pedal, TAC and harness from an '03 right now.

Jim_PA

iTrader: (8)

So I bought this: http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT

Pluged in the TAC and pedal, and same result. What do I throw money away on next? New PCM, new throttle body? Anyone want to take a guess??? My guessing isn't very reliable.

kbracing96

iTrader: (26)

Go on ls1truck.com and talk to gasguzzler I think his screen name is. He's a GM tech and knows what PN are compatible for the DBW stuff.