Quick, easy question
Thread Starter
Pro
Joined: Aug 1999
Posts: 514
Likes: 0
From: Roseville California
Quick, easy question
In an '86, when I change ECM's do I need to use a different PROM ?
Got rid of the original 122765, and replaced it with a 16198259.
PROM # is BUA 1728. The car is stock. Original ECM was defective. Maybe the PROM, too. I don't know how to tell.
Any help is much appreciated. :cheers:
Got rid of the original 122765, and replaced it with a 16198259.
PROM # is BUA 1728. The car is stock. Original ECM was defective. Maybe the PROM, too. I don't know how to tell.
Any help is much appreciated. :cheers:
Melting Slicks
Joined: Aug 2001
Posts: 2,516
Likes: 0
From: Lockport NY
Re: Quick, easy question (DI2FLY)
In an '86, when I change ECM's do I need to use a different PROM ?
Got rid of the original 122765, and replaced it with a 16198259.
PROM # is BUA 1728. The car is stock. Original ECM was defective. Maybe the PROM, too. I don't know how to tell.
Got rid of the original 122765, and replaced it with a 16198259.
PROM # is BUA 1728. The car is stock. Original ECM was defective. Maybe the PROM, too. I don't know how to tell.
The 8259 is the OEM replacement for the 165; I believe some of the 165 boards were bad. Functions exactly the same. Uses the same MemCal and EPROM.
The BUA is a Vette BIN; L98 auto trans 3.07 axle; you'd want to order GM part # 01227944 for a new MemCal; about $36 from 18carfan (Jeff Kopp).
You might benefit from a new ESC module, too (the 4-wire one next to the w/w washer bottle, not the distributor module). GM changed them over the years, too.
[Modified by Rich B., 11:34 PM 3/16/2002]
Thread Starter
Pro
Joined: Aug 1999
Posts: 514
Likes: 0
From: Roseville California
Re: Quick, easy question (Rich B.)
How do I contact Jeff Kopp that you mentioned ?
The ECM I got from GM was defective. Replaced it again, and the car runs great, but I'm still getting a code 33. The only part in that process I haven't replaced is the MAF unit.
Looking for a reasonable source for one of those as well.
Any info is appreciated. :cheers:
The ECM I got from GM was defective. Replaced it again, and the car runs great, but I'm still getting a code 33. The only part in that process I haven't replaced is the MAF unit.
Looking for a reasonable source for one of those as well.
Any info is appreciated. :cheers:
Melting Slicks
Joined: Aug 2001
Posts: 2,516
Likes: 0
From: Lockport NY
Re: Quick, easy question (DI2FLY)
You could page 18carfan or just email Jeff Kopp at -
"Superior Chevrolet Parts Department" <superchevyparts@worldnet.att.net>
Jeff is the parts manager. IIRC, the ECM exchange is only about ~$100...Lemme check quick...It runs ~$110, with a $75 core charge, from GM...AC Delco refurb...NAPA was ~$100 w/$75 core...That's for the 16198259...
You'd have to ask if they accept the 165 as core for the 8259...
"Superior Chevrolet Parts Department" <superchevyparts@worldnet.att.net>
Jeff is the parts manager. IIRC, the ECM exchange is only about ~$100...Lemme check quick...It runs ~$110, with a $75 core charge, from GM...AC Delco refurb...NAPA was ~$100 w/$75 core...That's for the 16198259...
You'd have to ask if they accept the 165 as core for the 8259...
