HELP!!! low control pressure - Ford Powerstroke Diesel Forum

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post #1 of 16 Old 10-03-2011, 06:47 PM Thread Starter
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Unhappy HELP!!! low control pressure

truck wouldn't run when warmed up. checked fuel pressure...OK, than Looked at the ICP, oil on the plug replaced the sensor and wire, only to still have the same problem. I changed the oil and the IPR Orings... nope. I bought a new IPR... still doin it! injector Orings were next, got better throttle response, but still dying when warm. crap must be my HPOP while I'm waiting for Terminator to rebuild my pump my buddy wrecks his 7.3 powered Van, so I swap injectors with him(they had been replaced) new Orings again instal HPOP now it doesn't die when warm just has no power.
control pressure at idle is a little less than 500 and cant go over 800 duty cycle hits 60 at anything past part throttle... and pop goes the check engine light.

any thoughts on this? what can I do next? I'm almost out of ideas!http://www.powerstroke.org/forum/ima...lies/dunno.gif
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post #2 of 16 Old 10-03-2011, 06:51 PM
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Did you install your new IPR when you swapped the HPOP? What codes are you getting, P1211 ICP above/below desired?
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post #3 of 16 Old 10-03-2011, 06:56 PM Thread Starter
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replaced IPR before replacing the HPOP... seemed to make sense at the time
hmm... just a thought the spacer on the IPR goes on after the solenoid, right?
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post #4 of 16 Old 10-03-2011, 07:06 PM
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Ok, but you put your new IPR in with his pump? What year powerstroke did he have?

Yes, solenoid, spacer, nut.
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post #5 of 16 Old 10-03-2011, 07:27 PM Thread Starter
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my truck is an 01 so was my buddy's van, but I only used his injectors, I ordered a T500 HPOP from Terminator Engineering
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post #6 of 16 Old 10-03-2011, 07:33 PM
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Ahh, so you swapped his injectors, then installed the new pump, with the new IPR, all at once? And since you did the pump and injector install it will start hot but has no power and is throwing a check engine light? Do you have any way to check codes?
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post #7 of 16 Old 10-03-2011, 07:42 PM Thread Starter
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I installed the new IPR and when that didn't work I tried the new pump.
code is 2110 I think ... the one for not enough control pressure/ too high duty cycle
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post #8 of 16 Old 10-03-2011, 07:52 PM
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That is weird, because you've replaced pretty much every componant of the high pressure oil system. What codes does it throw during the KOEO and KOER tests? Did you check the IPR plug end? Somtimes the wires will get rubbed thru right at the connector.
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post #9 of 16 Old 10-03-2011, 07:53 PM
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See if you can find out for sure what code it's throwing. I haven't seen a p2110 on a powerstroke before.
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post #10 of 16 Old 10-03-2011, 08:01 PM Thread Starter
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haven't done a KOEO or KOER test in a while cuz I have a
scangauge and can read control pressure and duty cycle so I know I have an internal oil leak.
I will have a look at the IPR wires. that could be a problem... good thinkin Justinmix
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