So where it says pin e is right should be pink on my harness it’s a white wire with no power i think a few others are different as well
Need pin out for transmission plug
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I’ve already checked the fuses all fuses are god I’m saying that I have pink wire but in a different position I’ll look at it again later on to confirmThe pinout above is the correct pinout. The pink coloring on the wire has probably faded and so it looks white. I have seen this happen many times. Pull the loom back a few inches and see if its pink. If that wire does not have 12v in Run and Start, go to the underhood fuse block and check fuse #53, TRANS, 15a.
I’ve
I have been in contact with performabuilt they are helping but they think it’s ground issue or something else with the vehicleYou should reach out to performabuilt too and make sure the right harness was put in or if they have ideas on what you need to do to troubleshoot.
this is the pin out connector view of the plug I got from performabuilt and it matches my plug on my car. I have the power at the pink wire what else should I checkThe pinout above is the correct pinout. The pink coloring on the wire has probably faded and so it looks white. I have seen this happen many times. Pull the loom back a few inches and see if its pink. If that wire does not have 12v in Run and Start, go to the underhood fuse block and check fuse #53, TRANS, 15a.
p0711What codes are you getting?
P0741
P0742
P0751
P0752
P0756
P0757
P0894
P1815
P1816
There’s are all the codes currently in the trans it’ll drive normal for two minutes then go back to limp and be on third and not shift at all
So I bought the car and it shifted hard supposedly it was a rebuilt trans, drove it home and it killed the pump in the trans. Had it replaced with a new converter as well. It still was shifting hard I replaced the throttle position sensor and it didn’t help. It lasted a week and killed the pump again, I’ve had good experience with performabuilt a few of my buddies have their transmissions in their cars so I decided to go with a trans from them instead of messing with the old one. I got it in and it was still shifting hard from first to second kinda rough to third but not bad. It has a litttle auto zone shit intake on it so I checked everything in home tuners and it showed reading lean in the fuel trims. So I started to rescale the maf and it seemed it was helping. I was on my way to my buddy shop and it acted like it was loosing gears it was like shuddering I’m first and second then it went into limp mode. It now if you clear the codes it will drive for a minute or two then go back to limp mode and be stuck in third gear. I’ve checked all the fuses and checked for power at the transmission the previous pin out I posted is what I was finding online and doesn’t match my trans harness. The performabuilt tech support semt me a pin out that matches my trans and I do have. Power on the correct wire according to that diagram I posted. So I’m kinda lost I don’t have acces to service information or anything to go about starting to find the issue I don’t know if I have ground I don’t know what wore to check on the trans harness itself for ground or what to check next I’m at a loss. The guy from performabuilt told me it’s soemthing going on with the vehicle and not the trans itself because it does try to drive before going back to limp.Can you give me a little bit of background on what led up to this happening?
I do have access to hp tuners I got a stock file from hp tuners reprosity and uploaded into tcm didn’t help so I replaced the tcm no changeDo you have access to HP Tuners or GM SPS? If so have you tried reflashing the TCM?
Tcm has already been replaced no changeYeah, you have a bad TCM.... clearly. There were issues before you changed transmissions, and after..... so it's not the hardware. Id reprogram it at a minimum or replace it. Did you verify the harness isn't pinched anywhere?
Yes it does but it won’t shiftDoes the gear indicator on the cluster work properly when you move the shifter through all of the positions?
Like it doesn’t manually change even though you’re putting it into 3rd 2nd 1stYes it does but it won’t shift
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