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black_majic300

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Reply with quote  #1 
wanting to know if a CPS fails during engine operation, can it damage the power head?
ElderSparky

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Reply with quote  #2 
Doubtful.  EMM quickly realizes when it does not know crankshaft position and will cease ignition/injection events.
black_majic300

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Reply with quote  #3 
That's good news I hope. Had loss sync code, engine cranks but won't start since.

Taking to shop this week, but wanted to know the related issues.

Thanks
olypopper

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Reply with quote  #4 
Basics first. Spark, compression and fuel pressure need to be checked and verified good. After that, a crank but no start could be quickly diagnosed with a laptop and/or timing light.
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ElderSparky

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Reply with quote  #5 
Easiest way I know to verify CPS has acquired sync and is functional is to crank the engine and see if RPM is being displayed.  Without CPS sync, the RPM will always read zero.
texas_pride

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Reply with quote  #6 
Have you ever seen a CPS or EMM issue cause a crankshaft to fail?
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