Icp duty cycle and pressure - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 03-11-2012, 07:49 PM Thread Starter
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Icp duty cycle and pressure

I've been having a surging problem with my other truck, 96 f350, when driving down the road truck loses power for a second then recovers. So today I hooked up an aeroforce scan gauge that I got from terminator engineering and while driving at 65 mph my icp duty cycle will fluctuate between 19 & 12% and 1200 & 800 psi when the truck surges. At idle icp duty cycle is 12% and between 560 & 640 psi. Is it time for a new HPOP? Thanks


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1996 F250 SC/LB, 4x4 PSD, ATS stage 1 trans 5 star tcc, AC codes,TW tunes, magnaflow 4" exhaust, 6637 , FS 2500 bypass oil filter,pure power reusable oil filter, isspro gauges, dieselsite cpr fuel pump system, adrenaline hpop, pml rear diff cover ,ebpv delete,non epbv pedestal, king pin dana 60, swamps idm, tru cool 4739
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post #2 of 5 Old 03-12-2012, 06:31 AM Thread Starter
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Bump for the morning.

Would a bad IPR valve cause this?


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1996 F250 SC/LB, 4x4 PSD, ATS stage 1 trans 5 star tcc, AC codes,TW tunes, magnaflow 4" exhaust, 6637 , FS 2500 bypass oil filter,pure power reusable oil filter, isspro gauges, dieselsite cpr fuel pump system, adrenaline hpop, pml rear diff cover ,ebpv delete,non epbv pedestal, king pin dana 60, swamps idm, tru cool 4739
USMC 1993-1998
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post #3 of 5 Old 03-12-2012, 10:24 AM
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Possibly. I'd pull the IPR out and inspect/clean it and see if it makes a difference. Also check all the wiring.

Jimmy
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post #4 of 5 Old 03-12-2012, 12:11 PM Thread Starter
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I'll try that , I've got a spare IPR valve.


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1996 F250 SC/LB, 4x4 PSD, ATS stage 1 trans 5 star tcc, AC codes,TW tunes, magnaflow 4" exhaust, 6637 , FS 2500 bypass oil filter,pure power reusable oil filter, isspro gauges, dieselsite cpr fuel pump system, adrenaline hpop, pml rear diff cover ,ebpv delete,non epbv pedestal, king pin dana 60, swamps idm, tru cool 4739
USMC 1993-1998
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post #5 of 5 Old 04-11-2012, 06:56 AM Thread Starter
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Update, I changed out IPR valve and bought a t- 500 HPOP. Icp pressure and duty cycle are good now but truck still randomly loses power at the worst times. I checked fuel pressure and it's good. Truck starts and idles great, I just don't know were else to check. Bad cps maybe?


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1996 F250 SC/LB, 4x4 PSD, ATS stage 1 trans 5 star tcc, AC codes,TW tunes, magnaflow 4" exhaust, 6637 , FS 2500 bypass oil filter,pure power reusable oil filter, isspro gauges, dieselsite cpr fuel pump system, adrenaline hpop, pml rear diff cover ,ebpv delete,non epbv pedestal, king pin dana 60, swamps idm, tru cool 4739
USMC 1993-1998
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