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  1. How did you run an Emissions Diagnostic in the 80's?

    In my last article I discussed AMC's CeC fuel feedback and emissions control system and specifically how to depot it for the purpose of reverse engineering. This consisted of one Intel MCS-48 microcontroller and a dozen inputs and outputs. This was pretty normal for the time and other automotive manufacturers were using similar designs, if not borrowing from one another. The problem with going this route however was that the system was closed-minded. There was no OBD2 and there was also no OBD1. ...