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PROM - Diagnosis and/or Replace
Joe and 88Coupe, I appreciate your help and I've begun working on the issue. At least through the book.
What I'm wanting to know is how do you know when to replace the PROM? I got a scanner and the troubleshooting book shows where there have been revised PROMs issued that address the carburetor running too rich. When I attach the scanner, it doesn't give me any codes but it does give me current readings. Just wondering if anyone knows how to find out if I should replace the PROM?
Also, when should the loop be closed and/or open?
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