Quote Originally Posted by 1project2many View Post
First test, and best. Key off for 30 seconds or more. Then turn key on but do not start car. CEL shoould light for 5-10 seconds, turn off for several seconds, then turn on and stay on. If this does not happen then you shouldn't bother trying to start the engine. This test indicates the PCM is able to execute code, the code is working, and the checksum is not incorrect (or engineering mode is active). If the light behaves as expected you should stop chasing checksum/bin/ecm issues.



For my own curiousity, did you modify anything in code for the 3 BAR MAP? Using 3 BAR MAP with an unmodified 2 BAR calibration can produce bad results such is vastly incorrect timing and fuel values for the engine.
I would put the appropriate map sensor with the appropriate tune. My connector is modified to fit all maps.