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Old 03-06-2013, 07:41 AM
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01 F550??

ok so lately the truck has been kinda hard to start in the morning.. When I turn the heater on i kinda smell fuel.. once the truck gets warm the smell goes away.. So im losing power and I finally got a code and its p1211. So im guessing its time to change the IPR anc ICP?? Ive been doing some reading on here and some people talk about when the IPR goes bad there is oil around it? where there is no oil around mine... I cant find any fuel leaks or oil leaks either... So would a bad IPR or ICP be the cause of the fuel smell when it starts up first time in the morning.. so should I just replace both of them to get it over with?

Oh yeah the truck is bone stock with 281K on the clock
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Old 03-06-2013, 08:00 AM
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Quote:
Originally Posted by armyguy View Post
so should I just replace both of them to get it over with?
No, no, no,,, don't do that!

Go find out what the problem is before you just start "throwing" expensive parts at an issue. Get it professionally diagnosed, or spend the money those sensors would cost on a good diagnostic tool like the AutoEnginuity (@$350) and be able to diagnose this and future problems yourself...

Could be lots of things besides the IPR/ICP (even more expensive)
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Old 03-06-2013, 08:24 AM
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climb up on motor, and look down inside the valley. Is it wet? Is it oil or fuel?

Also, check the degas bottle for anything other than coolant...fuel floating / oil floating.
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Old 03-06-2013, 08:53 AM
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Its dry.... so I ran our scan guage while the engine was running..
Fuel pulse width 2.7mse
Injector control press duty is 7.8-8.2
Injector pressure volt .75-.85volt
Injector ctrl pressure 460-480 psi

These numbers were all at idle.. do I need to drive it to get better numbers ?
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Old 03-06-2013, 12:29 PM
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do those numbers mean anything to anyone
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Old 03-06-2013, 09:30 PM
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how does it run in the morning once started?
does it start fine when hot?
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Old 03-08-2013, 10:59 AM
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it runs okay when it's hot but when I'm on a load or unload the engine and I accelerate I have no power that's when the check engine light comes on sometimes it's hard to start and sometimes little fire right up
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Old 03-08-2013, 06:58 PM
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okay so I pulled the plug on the ICP and the truck instantly started running smoother so I went to O'Reilly put a new ICP in it and it ran so rough and wouldn't stay running. now I have the old ICP back in the truck and it's running but still a little roughwhat should I check next?
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Old 03-08-2013, 10:18 PM
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maybe you got a bad sensor out the box
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Old 03-09-2013, 03:00 AM
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ya man, items like that, your better off with OEM. Was there oil in the plug at ICP?

Climb back on top of motor, and behind the hpop, you'll see a "tin" looking sensor, the IPR. Check to see if the tin-nut is still there, wiggle the connection..etc.
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