Icm proclems? Crank position sensor? Car wont start!! - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 6 (permalink) Old 06-24-2013, 12:03 AM Thread Starter
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Thumbs down Icm proclems? Crank position sensor? Car wont start!!

Hello everyone,

Having some issues with my 06 cobalt 2.2 LS. It wont start...I have recently done the following:

Timing Kit
Head gasket
Rings
Bearings
Valve job

The car has 190psi compression throughout, the timing is perfect, I have 55psi fuel pressure..at least at the nipple..I smelled gas when doing the compression test from the left over pressure...so injectors are spraying...

Im guessing between the ICM and the crank sensor? Is there anyone to test if these are bad? Any sort of readings with the multimeter? Please any diagrams would be great, I been working nonstop on this car and I cant get it outta my garage!!

Thank u
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post #2 of 6 (permalink) Old 06-24-2013, 01:09 PM Thread Starter
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Come on guys.....68 views no posts??
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post #3 of 6 (permalink) Old 06-24-2013, 02:01 PM
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weird no one answered, someone should be able to help you soon!

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post #4 of 6 (permalink) Old 06-24-2013, 02:50 PM
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Don't know where to start....

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post #5 of 6 (permalink) Old 06-24-2013, 06:31 PM Thread Starter
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I actually found the problem....the CRANK relay was burned up.....I switched it with one of the Cooling fan relays and car cranked right up.....although after running it for a little while I started noticing misfired....till finally the CEL came on and took it to get checked.....the CKP came up and the random misfire......so I replaced the CKP but now my car wont START AT ALL.....i keep reading about the relearn procedure....is the only one that can do this the dealer?? or can I somehow do it?
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post #6 of 6 (permalink) Old 06-24-2013, 07:09 PM
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Do you mean crank relearn? This should not stop car from starting. Crank relearn does not need dealer.

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