Re: 91 Camaro RS Dies in Drive
On OBD I, you have key off, short ALDL Pin A to B. Turn key on, SES will flash codes.
The first one should be 12, ie, "flash" pause "flash flash." Then codes captured will flash out as stated earlier. Have pencil & parer ready to copy codes.
After going through its memory and flashing codes for 5 times, it will repeat. You want to see code 12, this tells you the ECM is communicating, er, at least working.
See your local Mac man and get Mac Tool P/N ECM-1. Best tool to use. Has instructions and codes.
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