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post #1 of 3 (permalink) Old 10-31-2011, 11:47 AM Thread Starter
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06 Cobalt No Start. Need Assistance Please

Hello, everybody

I have a 2006 Cobalt 2.2 L61. It was in a small wreck in the drivers front fender area. The car drove up onto a wrecker, and then drove out of the yard when i picked it up under it's own power. It was towed back home. When I went to repair the body, it would not start. The fuel pump would not come on. I put 12v to the pump after removing from the tank and it worked fine. There is continuity from relay to pump. Just to see if the car would run, I spliced the pump into a hot wire. It still wouldn't start.

I have pressure at the fuel rail (60ish psi) if it is spliced to a hot wire. Injectors will not pulse; The plugs are not wet. I verified this with a noid light. The injectors seem fine, though. They have fine resistance and will open if given power source. I had no engine lights so i had the ECM tested. It was determined it was flat dead. No signal could be run through it they said.

I just replaced the ECU and it still isn't running. Sour smell from exhaust when trying to start although fuel pump won't prime and spark plugs are not wet.

This was a good car and I would love to have it running again.
Any help would be appreciated.

Blake W.
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post #2 of 3 (permalink) Old 11-01-2011, 11:20 AM
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Iím going to see what our Technical Assistance Center has to say about getting your Cobalt started. Their recommendation may be to bring your vehicle into a servicing dealership rather than give you incorrect information. I should have an answer for you either way in two business days.

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post #3 of 3 (permalink) Old 11-04-2011, 06:42 PM
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did you check the crank or cam sensor...it may not be sending a signal
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