p0264 code - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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Old 06-26-2014, 05:51 PM
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p0264 code

Well decided to check the IAT sensor today to see if it looked ok and wasn't all carboned up. Pulled it out and looked clean as a whistle. Reinstalled and started the truck up. All of a sudden after start up truck idled really rough and shook pretty bad. Took it for a little drive and still idled rough after I got back. I shut it off and checked ICP connector...that checked out ok. Wiggled the harness where I disconnected the IAT sensor...only because that was the only part of the harness I touched. Started truck back up and still idled rough. Then all of a sudden I got a CEL...p0264 for cylinder #2 injector circuit low. It got late and dark so I didn't look into it any further. I'm thinkin either the injector harness connector at the FICM, injector harness connector at #2 injector or a pinched wire inside the harness. Either way I'm leaning towards something with the injector harness. I have a brand new sitting here that I've had for a spare. What do you guys think?
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Old 06-26-2014, 09:53 PM
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I'm dealing with almost the same problem right now except mines cylinder 6. Ohmed the injector and it was out of spec so ordered a new one from Warren and that didn't fix the problem. I have a new injector harness on the way and going to get a known good ficm from Dale. He also said it is sometimes the connector on the harness, if the gold plating is worn or connector is burnt it will cause a problem.
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  #3  
Old 06-27-2014, 05:14 AM
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Fixed it. It was the injector plug on #2...It was loose. Took the clip off, reconnected and reinstalled the clip and purred like a kitten.
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