Here is a diagram of the crank and cam sensor wiring. The way you want to start is to check the crank sensor for instance, is check for a pulse with a test light on the red wire at the crank sensor plug itself. Back probe the sensor plug while still plugged in with a T pin or such and while cranking the engine check for a pulse on that red wire. The White wire on that plug is power going to the sensor from the ECM relay(Check for power on this wire as well). The black wire is ground. It is the same for the Cam sensor. No crank signal will cause a No Spark condition. Check at the sensor for a pulse before going and messing with the harness from the ECM.
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Saturday, October 8th, 2016 AT 4:19 AM