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Computer problems causing my fresh rebuilt 68rfe to run bad???

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Torque converter shutter or other?

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I have a 2008 ram 2500 6.7 and 68rfe trans running a smarty raceme programmer/delete
its been in and out of the shop for months, giving me the OD pressure rationality code once gets good and warmed up and after some stop and go driving usually triggered after a sloppy shift from 3rd gear.. trans shop swapped valve bodies and solenoid switch valve out a few times and he said he ended up putting in a 47RE valve body (pretty sure that it) because his ats support suggested that would fix my problem... but as soon as I drove it it acted up again, going into limp mode and throwing the OD rationality code not allowing it to shift past 4th.. after the truck sits and cools off it will run fine again until gets back in some stop and go to set it off again... transmission shop says the transmission is fine and I have computer problems causing this.

can anyone shed some light on this situation?

if it were computer related would the ATS CO-PILOT override the signals the computer is sending?

thanks in advance for any help, I'm about to run out of hair to pull out!:confused:
 
A 47RE valve body would never even fit (let alone work!) inside a 68RFE, so I think something got confused in the chain of communication somewhere. What gear are you in when it sets the P0871 code? If anything other than 4th, 5th, or 6th, that would indicate a closed OD pressure switch, and a broken wire (or bad connection) looks like a closed pressure switch to the TCM. So it could be a wiring problem. I would suggest you have them do a wire swap: Unplug the trans wiring harness (at both ends, trans and TCM), unlatch the OD pressure switch terminal at each end of the harness, and slide the terminal out of its connector. Then also unlatch and remove one of the OTHER pressure switch wires (2C, for example), again at both ends of the harness. Then SWAP those two terminals (at BOTH ENDS) and reinstall them into the cavity that the other one was in. Once you do that, you have effectively swapped the wires, so that the wire that used to carry the OD pressure switch signal now carries 2C, and vice versa. Now drive the truck and see what fault sets. If you now get a P0846 (2C Pressure Switch Rationality), that proves it is the wire that's bad. If you still get a P0871, that proves it is NOT the wire (and therefore must be the VB or the TCM, and since a new VB didn't fix it, must be the TCM).
 
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