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Old 09-29-2005, 02:55 PM   #1
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Default PCM problems

Can a PCM be overflashed and cause damage? I'm guessing if it is damaged the car won't start right?
'94 z28 auto; 355 ci, cam, headers, exhaust, vigilante, k'n fipk, 3:73s, tuned by owner. 12:41 @ 111.12 mph Montreal, Canada
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Old 09-29-2005, 03:02 PM   #2
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98 cars seem to be prone to this ... something to do w/a bad file being written to them... after which even w/a rewrite they can't be recovered.

There is an actual limit as to the number of times a PCM can be flashed... I believe it's in the hundreds if not thousands... however I've also heard that the OEM replacement (ones that were made afterwards for repairs) fail considerably earlier (fail to accept a reflash)....
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