No throttle after os swap

[derkscustomcars]

Hello there,

lets start with telling what i have:

2006 6.0 with turbo and a th350 for now.
i did a full reflash on the ecm to get it down to a 2003 OS.

i did the whole os swap thing, ecm took it all. i know the tps and tac module from 2003 vs 2006 are different so i swapped them out for the 2003 metal pedal ones.

if i turn the ignition on, throttle body cycles and responds to the pedal, as soon as i try to start engine, nothing. pedal is dead and the engine stalls. the t body is not attempting to keep it idling.

i increased C6101 by 50% at first, no go so i did another 50%. still nothing.

anyone has seen this before?

thanks for your time,

Matt

[derkscustomcars]

i have confirmed the wiring of the ecm plugs between years and they are the same

[GMPX]

It would be setting a DTC, did you check them?

[derkscustomcars]

I just did, no codes. I tried another tac module and pedal from a running 04

[derkscustomcars]

I will hook up my tech2 and see what I can find out

[derkscustomcars]

i flashed the 2006 ecm back to the base 2003 os and tune and she fired right up. i must have missed something

[Tre-Cool]

no. this is something that has happened to me a few times with e38 ecu's.

something seems to get corrupt in the tune files. so u need to flash back in a working file/calibration. then do a compare and copy all your tables back again.

[derkscustomcars]

thanks, yes i did reflash the stock tune, ran fine, reflashed the custom os and its all working. still working on the map sensor. it seems to fall on its face when stepping on it. but customers vehicles first. maybe on the weekend

[C450]

I'm having what sounds like the same issue. I'm running a 5.3 with turbo, TH400, COS5, and cable throttle body. It will idle but when I give it any throttle it just dies. Did you happen to find the issue with yours?

[derkscustomcars]

Some setting is the diagnostic side . Joe car explained it all