I used a jet performance programmer and it now says PCM needs service

Asked by Aug 20, 2017 at 09:52 PM about the 1997 Chevrolet C/K 1500 Silverado Extended Cab SB 4WD

Question type: Car Customization

97 Chevrolet Z71 5.7 Vortec I bought a jet
performance programmer and I did what is said in
the structions and I went to retune my truck the
truck ran fine and real good before I went to
reprogram the tire size and to get better Towing
soon as the programmer read my VIN number and
I went to program it it took my stock program and
saved it to the performance programmer and then
and went to put the performance programming
Midway through putting the performance
programmer in it shut down and told me PCM ECM
needs to be serviced I need help it won't let me do
nothing it won't let me put the stock program on
there I don't know what to do

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