Cranks but no spark

KEVIN DEBELLEFEUILLE

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29 POSTS

Attached is a picture of the crankshaft position sensor connector (the side that leads to the PCM). You can see the blue and green wires. To test for a short between the two wires (blue and green) I set my voltage meter to continuity and touched one of the probes to the green wire pin in the connector and the other probe to the blue wire pin.

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Friday, September 27th, 2019 AT 9:29 AM

JIS001

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3,411 POSTS

Yes it was.

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Friday, September 27th, 2019 AT 9:32 AM

KEVIN DEBELLEFEUILLE

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So are you thinking that I need to replace the PCM, or is there anything else I should test first?

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Friday, September 27th, 2019 AT 9:36 AM

JIS001

MECHANIC
3,411 POSTS

Hello and welcome back. The circuit measurements you did would indicate that. There is no actual test to do for a PCM fault unless there was a code to indicate such a failure. The measurements taken were to verify proper power and ground and input from the crank sensor and for no opens to the distributor circuit or shorts. As a technician, we are dealt that very same hand at times if it is a PCM or not because they are not cheap and we just need to go with what the tests tell us and it is a decision you need to make from here. We are here to help guide you interpret the circuits you are measuring.

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Friday, September 27th, 2019 AT 9:31 PM

KEVIN DEBELLEFEUILLE

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Thank you for all the help you have given me. You have truly gone over and above. I will report back after I have installed a new PCM to let you know if that's what the problem was.

Thanks again!