It turns over but it wont start

2004 DODGE INTREPID
73,000 MILES
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NESSABOO1380
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I put a engine in this vehicle and i had to take the wire harness a loose from the ecm and now that the job is complete it turns over but it wont start.
May 9, 2012 at 5:46 PM
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RASMATAZ
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Go to this link: https://www.2carpros.com/articles/car-cranks-but-wont-start
May 9, 2012 at 5:48 PM
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NESSABOO1380
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Is it possible that the computer needs to be flashed because of me taking one of the harness a loose from the ecm when I took the old engine out ?
May 9, 2012 at 6:00 PM
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RASMATAZ
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Is the check engine light coming On? also follow up on the link
May 9, 2012 at 6:05 PM
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NESSABOO1380
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It is not runnin but it does have one fault PO685 ASD relay open circuit
May 9, 2012 at 6:11 PM
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RASMATAZ
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Check and test the ASD relay be advised this is not gonna be simple fix-this relay is used to power the ignition and fuel system
May 9, 2012 at 6:18 PM