solidaxel

I keep getting a code Po741 but not all the time!
I can clear it BUT I have not located the problem so it will return.
The trans rebuilder says it is the computer/wiring, how can I prove it to the trans or computer (isolate the source) without removing the pan and checking the wiring
The harness is by Howell and they provided and tuned the computers, I have sent them back 3 times so I believe them to be OK

New LS 3 w/E38 and a 2003 4L60E w/T42
I have ID pin #7 at the trans and pin 25 at the computer
VOM test no ground w/key on, or no test light 12vdc to pin 25.

I have not tested pin 25 after the code P0741 !

It works, TCC, better when it is cold BUT not every time it is set for 54mph

Thanks for your help

Vette_DD

What model year Corvette are you talking about? That model year is frequently helpful in diagnosing problems.

solidaxel

I thought I would start in this area first and ask questions!

The engine is a new LS3