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Old Aug 3, 2014 | 12:07 PM
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Default Help!!!!!

I hope this isn't a repeat post but I need help! I have an 04 heritage efi and it is running horrible all of a sudden. It coughs and chugs and misses really bad so far that it's seeming to run on 1 cylinder. I have replaced plugs and wires on it. I ran some injection/system cleaner through it and didn't so I sucked all the gas out of the system and put new in and didn't get any better so if anyone can help I would really appreciate it!!!!!!
 
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Old Aug 3, 2014 | 12:40 PM
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How is it at an Idle? Is it running fine? Could be as simple as a clogged fuel filter.
 
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Old Aug 3, 2014 | 05:22 PM
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Are you showing any codes?
Check the connections on the ECM and the BCM.
 
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Old Aug 3, 2014 | 05:24 PM
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Crankshaft sensor?
 
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Old Aug 5, 2014 | 08:31 PM
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The idle rolls up and down and caughs out of the air cleaner I'm surprised there are no codes in the system the fuel filter is only about a hear old.
 
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Old Aug 5, 2014 | 09:01 PM
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Mileage? You could have pinholes in your internal fuel lines. Does it happen when the tank is full? Or only when less than half?
 
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Old Aug 6, 2014 | 10:02 AM
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just turned 20k it initially started when the tank was under half but now it does it constantly
 
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