Identifying ECM in 91 PA

Hi, can anyone tell me how I can identify which ECM i have in my 1991 Park Avenue? I have it out and need to replace it. The only numbers I have on it are as follows,

Make: GM
Production no.: EM1470
Production broadcast code: **R7C**

Made in Canada By Blue Steak (?Streak?) Electronics


Can anyone help in identifying this and possibly give me an idea on how much they are and where to get them? Thanks much..
Jim

The 91 PA uses an ECM 88999178 that {replaces 16141470}
Click Here (http://www.gmpartsdirect.com/) & Here (http://www.rockauto.com/catalog/x,carcode,1019731,parttype,2896) for a source.

You might also want to try eBay. :grinyes:
Search "Olds, Buick, Pontiac, ECM-computers". Good Luck!

Thank you for your help Z ! I was able to get a used one at the salvage yard and that turned out to be my problem! Thanks again for your help!