sgilbert1967

iTrader: (3)

Guys picked up The car at Trans shop ( 98 camaro 6.0l 4l60e from t56 project) again still throwing p0740 and we discovered that it was immediately applying TCC with key on...after checking everything in Trans the tech unpinned 42 and boom that drops it out...which tells me it isn't a ground issue in the engine or Trans harness....so I picked up car and used a momentary start and hooked to the lead, sure enough TCC works just fine by connecting it to the pin at 42 ( unhooked from pcm) and ground....so that just leaves ECU...has anyone seen a 0411 go bad and ground some circuits it shouldn't ?

joecar

Did you verifiy there isn't a short in the harness...?

Post the wiring diagram that was used.

sgilbert1967

iTrader: (3)

Just in case it helps anyone else, we checked every wire and read another 0411 through the circuits and finally just decided to install and license it...added my current tune repinned 42 and boom fixed...bad ecu what a Nightmare ( which is why this project is called Nightmaro )