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Old 03-01-2013, 02:00 PM
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P2289

I am getting a P2289, ICP pressure too high code. Every few days, the truck goes into limp mode. The CEL or wrench light do not come on. I check the code with my IQ and the P2289 shows up.

I have been researching this and can't find much for the 6.4. Some people suggested the ICP sensor, but it seems like that is a 6.0 thing. Then I found that it could be the fuel pressure sensor but that you have to take the valve cover off to get to it?

Any ideas what would cause the P2289?
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Old 03-01-2013, 02:20 PM
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To the best of my knowledge, the icp and the frp are one and the same.. it's located on the rail under the valve cover.. I swapped mine a few weeks ago when it scrapped out.. will take you an hour or so to do it..

Inspect the wires while you're in there.. it is a voltage/resistance sensor, so any bare wires or wires broken inside the sheathing will cause strange readings.. you'll need a 1 1/16" wrench to twirl it out of there, and you only get one shot at putting the new one in, as it is a crush sleeve for the seal.
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Old 03-01-2013, 02:22 PM
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Alright, I can do that. Which side is it on?
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Old 03-01-2013, 02:41 PM
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Passenger... Above cylinder 2..
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Old 03-01-2013, 02:59 PM
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Of course I don't have that socket. Deep well?
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Old 03-01-2013, 03:08 PM
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It would have to be a deep well to clear the connector.. you may be able to find an o2 sensor socket with the split side to do it.. I rec an open ended wrench, though.. that way you don't have to wrestle the valve covers out, just unholy them and pull them to the side..

The torque, iirc, are finger tight and then a one hex more turn..

See if you can't get your hands on a snap on scanner first, though.. it may come to pass its not the sensor, bit the wiring instead.. they like to chaffe where they come out of the heads and bend to join the others..
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Old 03-01-2013, 03:28 PM
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That's good then because I do have that wrench. Thanks!
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Old 03-02-2013, 11:40 AM
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Alright, I dug into it a bit and I need some guidance. Do I need to remove the oil fill canister? How many bolts on the valve cover? I can't seem to find the sensor - can I see it before I loosen stuff so I know where it is and where I am trying to get?
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Old 03-02-2013, 11:58 AM
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Yup.. you gotta remove the oil tower, disconnect a few harnesses, and unbolt the covers before you can even see it.. it sits on the end of the rail, nearest the grill.. if you've got a replacement sensor in hand, and know what it looks like, you can't miss it.
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Old 03-02-2013, 12:01 PM
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I feel like an idiot. I am rebuilding a 454 right now, but I can't tell which are the stupid valve covers on the diesel. Any chance you could take a pic or describe them?
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