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Hello
This is my first post as i am new to this world and i hope i am posting in the right place.
My problem is when trying to write the tune to the car it stops and a says timmed out and car cant even start after that,
Then i pulled out the ecu and try to write it on a bench wiring and its fine.
So WHY CANT I WRITE AS THE ECU ON THE CAR AND CAN WRITE THE SAME ECU ON BENCH WIRING?
2003 GMC Sierrra
MPVI 2
LIkely a wiring issue with the vehicle from the sounds of it.
Anything aftermarket on the truck?
Like alarm or radio?
I still can read, scan and data log, is it possible to do all that with wiring issue?Quote:
Originally Posted by Bill@HPTuners
The only thing that i cant do is uploading tune file!
Aftermarket radio with RP5 adapter onlyQuote:
Originally Posted by 5FDP
Absolutely, yes.Quote:
Originally Posted by Tawashco
Remove the radio fuse and try again.
Anything aftermarket like that is trouble with the 2003-2007 trucks.
I have that problem on a Chrysler. It begins the write with an erase, then times out. So I'm kinda dead in the water at that point. :)
I found that if I disconnect the TCM connector from the ECM it writes fine.
I will try it and let you knowQuote:
Originally Posted by 5FDP
I found that the clock spring is damaged (open circuit). Could it be the problem?