I few weeks ago I started getting the dreaded ses light and the accompanying code p0757. I took it back to my tranny builder (len freeman-galina racing) and he changed out both solenoids and yet the problem persisits. It actually came back in an unusual way though. I drove it about 30 miles after leaving the tranny shop and the ses light came back on. I reset it and it came back on again. I then reset it again but this time it stayed off for close to 100 miles-then popped back up.

At this point im guessing it must be electrical or something because it just makes no sense. Even Len said he ohmed out the original solenoids and they seemed fine, but still changed them out to be safe. Any input would be welcomed.

Thanks

 

Its not and electrical problem at all its a tuning issue, Its a common issue with high stalled cars the PCM think the 2-3 solenoid is stuck because it does not see the correct engine rpm to vss speed change on the shift , So it thinks the car did not shift to 3rd.
I have said this a bunch of times as have others. With any stall over 2800 you must remove the test for codes PO757 and PO751
Do this and your problem will be solved

 

i had those codes after getting my stall/cam and it was the most awful drivability ever!!!!! just get those codes deleted.

 

I appreciate the info guys. I made a newb mistake and posted a thread- and then searched. i actually founds posts from performabuilt saying this already, but thanks again.