P1211 + P1280 = rough idle and missing? - Ford Powerstroke Diesel Forum
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  #1  
Old 12-16-2010, 07:07 PM
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P1211 + P1280 = rough idle and missing?

so my truck is running real rough, these are the codes i pulled checked with the chip and without same thing, has no power at all without the chip cant tell if its low on power with the chip. but runs really rough.

I changed the ICP sensor which didnt fix it and fuel filters thinking one may have been clogged but still the same, what else could it be hpop? injector Orings?
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Old 12-16-2010, 08:42 PM
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forgot to mention when i go from drive/reverse to neutral the rpms jump from 600-1100 then back down. never did that before
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Old 12-16-2010, 09:39 PM
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sounds to me like your HPOP. Mine does the same thing when im running low on oil in the motor. thats how i know when my oil is getting low in my truck
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Old 12-16-2010, 09:45 PM
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wow, you are having issues, that sucks......
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Old 12-16-2010, 09:52 PM
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ill change the oil and see if that helps, its just so damn expensive just to see it doesnt do anything

could be the HPOP but i doubt it truck only has 95k but its the 15* early style so who knows
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Old 12-16-2010, 09:54 PM
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did u get the AE from Adrian? if so I have a AE HPOP health check I can send u to try b4 u do that??? OR just upgrade or HPOP.....
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Old 12-16-2010, 09:57 PM
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no i didnt i will send him a pm and see if we could meet up sometime. i may just upgrade the HPOP if nothing else fixes it gonna have to when i get some bigger sticks...
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Old 12-26-2010, 09:00 AM
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here is the test for the ICP now if the AE would just show up it would take away a LOT of stress.......
Attached Files
File Type: pdf Diagnosing P1211- ICP- IPR.pdf (270.0 KB, 186 views)
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Old 12-26-2010, 09:31 AM
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thanks laurie, im really hoping the AE shows up tomorow, its gotta be the IPR because the solinoid body keeps coming loose off the IPR itself. I tighten it take it for a drive and its fixed at first then as im driving it gets worse and worse because it keeps coming loose.
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Old 12-28-2010, 04:22 PM
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Ok so i ran it on the AE today, pulled the same codes again. tested the ICP pressure and volts as well as engine RPM and IPR duty cycle.

ICP pressure at idle was 724 and the highest it got was 2461 at 2600rpms

ICP volts read ZERO the whole time gotta be a wiring issue

IPR duty cycle never went over 42% at 2600rpms and idle was around 13%, when i changed to my tow tune it loped and it was jumping from 14-18%

Now here is my other issue, according to the AE my RPMs are off by 200 compared to my guage panel, what could be causing this? bad CPS ive got the recall on that so i may just take it and have that fixed i just dont want them trying to do any other work on my truck i hate taking to shops(crooks)

When i get a sunny day i will get under the hood and start checking all the wires in detail for ANY little rub marks.

ALSO the damn truck had dead batteries today would barely turn over, FML when this truck has stuff happen everything fraking breaks
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