Eprom Flashing
Thread Starter
Pro
Joined: Dec 2000
Posts: 534
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From: Farmington NY
Eprom Flashing
I've read that Eprom periodically need to be reflashed, updated. I have an 88 and don't know that this has ever been done! is there anyone on the forum that does this? I had a new chip created for my 85 but that was 18 years ago and I don't recall who did it. I've not done anything to enhance my 88.
Team Owner
Joined: Sep 2003
Posts: 25,381
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I've read that Eprom periodically need to be reflashed, updated. I have an 88 and don't know that this has ever been done! is there anyone on the forum that does this? I had a new chip created for my 85 but that was 18 years ago and I don't recall who did it. I've not done anything to enhance my 88.
If you posted just coupe or 'vert, trans and axle ratio an appropriate PROM to expect wouldn't be difficult.
This link I'd think might be appropriate for many/most.
https://www.corvettesalvage.com/c3-c...des-1980-1995/
GM SPO Parts Cataloging doesn't reflect multiple changes for most '88 but it's easily checked. If you have an appropriate scanner 'VERY EASY'!
Last edited by WVZR-1; Jan 26, 2022 at 11:48 AM.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
PCM Reflashing didn't start until 94 in corvette. The 84-93 use a replaceable prom aka mem cal. It will have a 4 letter and 4 number code on it. Original ecm will have code on label. Scanner will also display a digital prom ID. Using code Dealer should be able to tell you if prom was updated.
There is equipment that allows for custom tuning. Some will use aftermarket eproms.
There is equipment that allows for custom tuning. Some will use aftermarket eproms.
