05 bad mileage, runs rough - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 08-20-2008, 12:33 PM Thread Starter
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05 bad mileage, runs rough

I have a friends 05 6.0 that is getting bad mileage and runs rough for a minute after staring. It has 3 codes 0261, 0284, and 0611. Any ideas would be great. Thanks, Chad.

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post #2 of 4 Old 08-20-2008, 01:07 PM
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Run an injector buzz test. most likely you have a bad injector or your ficm needs to be reflashed. The ficm may also be bad. and run a cylinder cylinder contribution test also.

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post #3 of 4 Old 08-20-2008, 02:22 PM Thread Starter
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I ran the injector buzz test and it they tested good. I have an OTC scanner that will run a self run a KOEO self test. It will start to run the test but gets a 0261 code( Inj. circuit low cyl. 1) and stops the test. Any other ideas? Thanks for the input.

02 F-250 CC SB 4x4
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DP Tuner 40tow 80 econo 100 120
Magnaflow 4"
DIY intake
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Wicked wheel
Western V-plow
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post #4 of 4 Old 08-20-2008, 03:18 PM
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Check the harness to each injector, making sure there are no shorts and the are ok. Then ohm out the injector, and do you have a wiring diagram? If so check powers and grounds to ficm. If everything checks out you most likely have a bad ficm. Does the truck have the latest reflash? Is there a clicking sound after shut down? If not get it reflashed.

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