It suppose to have come out of a know good 82 corvette. I'm used to working with chips and precaution necessary to prevent damage. I have found if you take those it is really hard to actually damage a chip.
Any way it turned out to be the chip. I swap computers check engine light came on. Took my chip put it in the new computer Check engine light off. Put my computer back in with new chip Check engine light on. Put old chip back in check engine light off. Back to square one everything old back in check engine light is off.
4 hours of work nothing gained except that I would say I have a working computer to confirm that I would need better electronic test equipment than I have access to now that I'm retired. Could have done a lot more 20 years ago.
Lost the talent through not using it and access to the test equipment because of retirement.
Can these be reprogrammed by the way?