IPR valve bad or screen plugged? - Ford Powerstroke Diesel Forum
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Old 11-13-2012, 09:25 AM
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IPR valve bad or screen plugged?

I had just recently did an oil, and egr cooler, standpipes, and dummy plugs. I was getting a no start when hot. I also checked my STC fitting while i was there and it was done already. MY hpop screen was ripped, my IPR screen was fine. I changed both.

After i got it started and idling for a bit the idle changed and the hpop went up to 875.00 and IPR went up to 32.5% and threw a code p2284. I cleaned up the ICP and reset the computer and it started up fine again. Only when i put a load on the engine does the code come back and the same symptoms.

Here is the question. Will a clogged IPR screen and or a bad stuck IPR valve cause this condition? The truck ran fine before all this, only the no start when hot. If i'm gonna pull the turbo for the valve i would like to do this only 1 more time. Also, is there any way to clear the HPOP for any problems while i have the turbo out?

There was alot of crud around oil cooler and i used towels to clean the HPOP reservoir. Clogged IPR?
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Old 11-13-2012, 09:39 AM
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Thats an ICP circuit code. You need to check your ICP voltage KOEO, wiggle the connector while the truck is idling and see if it skips, may be a bad sensor or connector.
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Old 11-13-2012, 09:41 AM
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Sounds like a IPR issue. Pull the valve and check the screen for debris.

You can buy a special socket for the IPR so you dont have to pull the turbo
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