How to ID stock 86/87 ECM chip

N2BUICK

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May 25, 2001
Trying to get my 1986 GN back to stock, to sell. How do you identify a stock chip ? I have had a Reds chip in for years,
I have put in a CWS chip which i thought was stock. I am finding other CMW chip in spare ECM's.
Ran great, put the CWS chip in and sets a 32 code out of the blue ?
Any connection?

Thanks
N2BUICK
 
CMW is a Turbo Buick '86 MY calibration released in Oct 85.

CWS is for a 3.0l FWD platform, 6 cylinder, '86 MY.

RemoveBeforeFlight
 
CMW is a Turbo Buick '86 MY calibration released in Oct 85.

CWS is for a 3.0l FWD platform, 6 cylinder, '86 MY.

RemoveBeforeFlight


I will put the CMW in. Hope the 32 code goes away?
Thanks
 
I will put the CMW in. Hope the 32 code goes away?
Thanks

The car sure likes the correct ECM chip. No code 32. Now got to get used to the cold lean idle, of the factory chip ??? After closed loop all is good.

Thanks
 
From my recollection:

CMW, ACXA or BBKJ are all applicable for the 86-87 cars. BBKJ is the recall chip for the 87's.
 
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