Help with trouble codes P0741 and P0700

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10-12-2016, 01:16 PM

#21

CammedSierra

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Quote:

Originally Posted by darkirish63

Just wondering - did your tuner adjust the shift points for the 80e as well as the stall?

He did for the 80 as far as the stall in not sure all he said was that he raised the pressure to firm up the lockup

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01-15-2017, 02:16 AM

#22

Three6GMC

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Bringing this thread back... I used a PCM of NC 6l80 to 4l80 swap harness and tcm on my 2011 GMC and I'm getting the same p0741 code. Can be driving for over an hour and all of a sudden the converter will come out of lockup. Once I clear the codes I get lock up again. Can this be fixed in the tune because I have checked the wiring harness and all that to make sure everything was good and can't think of what else it could be.