I continue having fuel related problems with my 93 Dakota V8, as I detailed in other posts. I now suspect that I may have a faulty PCM or ignition module. Where is the PCM? Is it under the hood on the passenger side fender? Also, in the Haynes manual there is a description regarding a test for the circuits in the ignition module. But the drawing makes no sense. Any suggestions how to test the ignition module? Thanks...