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Author:	y-not [ Sun Jan 29, 2012 4:41 pm ]
Post subject:	ecotec no spark
Alright, This thing was running then it just quit. It has no spark. I have replaced crank position sensor, ing control module and ecm. All I know now is the ICM is not recieving a 12v signal. I went through the harness again checking grounds and even ran them to the neg batt terminal. Please help.....

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Author:	Terry fryer [ Sun Jan 29, 2012 9:02 pm ]
Post subject:	Re: ecotec no spark
I had this happen once it was the wires to the crank position sensor. I would run two new ones or test them to make sure they are not broke in the middle somewhere.

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Author:	MickeyMouse [ Sun Jan 29, 2012 9:08 pm ]
Post subject:	Re: ecotec no spark
What is an ICM? ECM? Crank Position Sensor? .... These all sound expensive and difficult to troubleshoot... Oh. that is a Water Cooled engine.. I thought you never have to work on them... Just having fun..

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Author:	y-not [ Sun Jan 29, 2012 9:23 pm ]
Post subject:	Re: ecotec no spark
I will check those wire out. Where does the ICM get it's 12v from? ECM. And can I give it a direct 12v or will that burn it up.

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Author:	y-not [ Mon Jan 30, 2012 7:24 pm ]
Post subject:	Re: ecotec no spark
I checked the wires from the CPS to the ecm. Also checked the wires from the ICM to the Ecm found no breaks or damage to them. All the conections seem to be in god condition. Anything else?

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Author:	Ibanidiot2 [ Mon Jan 30, 2012 9:27 pm ]
Post subject:	Re: ecotec no spark
What spark plugs are you running? I have read that after market plugs will fry components. Oil and fuel pressure readings at the ecm?

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Author:	instigator [ Tue Jan 31, 2012 4:13 pm ]
Post subject:	Re: ecotec no spark
start unpluging on thing at a time.should run in limp mod.

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