Cam Sensor Check Engine Light
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Yes, it'* showing it has power...... and there is continuity on the wires to the connection that goes to the injectors and ECM. I have replaced the crank, cam sensor, the ICM, and the coil pack.....still no luck in starting.
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So power is coming into the ICM and not coming out as spark. Seems like the problem is right there somewhere.
Last edited by CathedralCub; Jan 10, 2021 at 01:10 AM. Reason: Added an "in"
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Yes, I have power coming in to the brand new ICM and Coil Pack, wires, plugs AND another ICM harness... I have a new Crank Sensor (That I replaced 3 times just to be on the sure side, my parts store gave me the 2 extra and defected the others). This has befuddled me in all my years of working on cars...BUT just last night I was given info in the "Main Relay" so I'm going to check that this afternoon..... I will let you know after I check it........
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Did you load the power and ground circuits or just use a DVOM? Could there be an amperage issue that the wires carry voltage but not enough amperage to run the circuit? If I remember correctly,spark comes from the ICM and Injector pulse Grounds thru the PCM. Can you get Hz readings at the icm from the crank and cam sensors. Don't have a schematic with me now so I don't know ICM connector terminals. Just a thought.
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Just used a DVOM..... No luck with the relay..... Problem started when the plastic around the crank sensor pigtail broke due to dry rot... Engine was running fine before that.... When I've replaced the C * it has not started.....
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At this point, I think I would load the power and ground circuits at the ICM. (You can use a head lamp bulb to do so.) to verify a good circuit. also verify sensor input at the ICM by using a pin and back probing the terminals. You said you replaced the sensor harness. Make sure the wire'* are going to the correct terminals. Get a copy of a ignition schematic. Sorry I don't have one at this time. With this information maybe it will give you a better direction. Hope you find this helpful