ECM Compatibility

[Rusty Shackleford]

Hello all,

I have a 97 Riviera sc, and am looking for a computer. A local junkyard just received a 1995 sc, and I am wondering if it would be compatible?

I called the biggest local GM dealer, and spoke with the parts guy. He said to call a shop that works on classic cars, because his computer system didn’t have any answers, as the part is discontinued.

Any information would be greatly appreciated.

 

[MelsRegal]

Hello all,

I have a 97 Riviera sc, and am looking for a computer. A local junkyard just received a 1995 sc, and I am wondering if it would be compatible?

I called the biggest local GM dealer, and spoke with the parts guy. He said to call a shop that works on classic cars, because his computer system didn’t have any answers, as the part is discontinued.

Any information would be greatly appreciated.

Compare the part number of yours to what they have.
Have you looked at these

Search

 

[HotZ28]

IIRC, the '95 was a series-1 engine & the '97 was a series 11 engine. so the PCM would be different. '95 PCM's had the old OBD1.5 programming and the '97 was OBD 2. Just something to be aware of with what you are looking for!

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www.ebay.com

 

[LARRY70GS]

The 95 is not compatible. According to this Ebay Auction, 96-99 is.

1996 1997 1998 1999 Buick Riviera ECU PCM ECM Engine Computer REMAN * Lifetime * | eBay

Special Message: We are open and processing orders Plug & Play Quick Processing Nations Leader in Remanufacturing and Programming Automotive Computers. Lifetime Warranty Note: Please check vehicle compatibility section to be sure your vehicle is listed. 1996 1997 1998 1999 Buick Riviera ECU PCM...

www.ebay.com

Maybe take a chance with this one?

Buick 16227797 for sale online | eBay

Find many great new & used options and get the best deals for Buick 16227797 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[HotZ28]

The '96 OBD11 was the first year of that particular computer and the '97 was a totally different programming animal. You need to narrow down the search down to '97-'98 year.