i have a 2001 ford f250 7.3 (444e)..i have a superchip install on it. the other day around 55 60 mph the truck started to lose power. it wouldnt pick up speed. i change the fuel filter, the ipr valve, change oil & filter. I ve changed both exhaust pipes that go to the tubro & still does the samething, here are some code p1670 p0340 p1282 p0603 p1211 need help dont no what more 2 do.

 

p1211 This is a code that is saying you need a more oil pressure to your injectors. This will not make you just loose all power but it will hold you back some at top end when you floor it.

 

It sounds like the either the HPOP isn't able to keep pressure up under load, or the fuel pump is failing, or the filter in the tank is plugged up. Have you checked the fuel pressure? Easy to do from the back of the fuel bowl (there is a plug with an allen screw...use an oil pressure gauge). If you are lucky it will be a fouled filter in the fuel tank or a pump that is dieing. If that's the case then a lift pump and Hutch mod are in your future. Have the hpop pressure checked using Autoengenuity or a manual gauge (you'll need one to go to 3000#). You should be able to maintain above 2400+ psi if I remember correctly.

<TABLE style="WIDTH: 48pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=64 border=0 x:str><COLGROUP><COL style="WIDTH: 48pt" width=64><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; WIDTH: 48pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=64 height=17>1283* IPR IPR circuit failure Run-mode or KOEO OCC test Open/grounded circuit, stuck IPR, loose connection


0340 CMP camshaft pos sensor ckt malfunction No CMP sensor signal detected during crank Open/grounded circuit, sensor fault, short to power


<TABLE style="WIDTH: 48pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=64 border=0 x:str><COLGROUP><COL style="WIDTH: 48pt" width=64><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; WIDTH: 48pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=64 height=17>0603 PCED Powertrain Control Module KAM error No historical faults output during a KOEO test Open PCM pin, disconnected B+, faulty PCM</TD></TR></TBODY></TABLE>








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thanks for the info.....i change my fuel filter again and my air filter it do any thing... ill drop my fuel tank to see the filter in the tank. if any one can help me out u can call me at any time 407 860 5607 thanks

 

p1211 This is a code that is saying you need a more oil pressure to your injectors. This will not make you just loose all power but it will hold you back some at top end when you floor it


Trust me on this one

 

Was a solution ever found for this? I'm having the same thing I think.

 

This is from Diesel Mans Page:





Loss of power, usually after a hard acceleration; Rough idle; Check engine light comes on, DTC P1211:
Intermittent high pressure oil leakage.
This condition usually occurs when the vehicle is cold and the oil is thick. When performing a hard acceleration, the truck suddenly looses power, the check engine light comes on, and once returning to idle the engine runs rough and won't accelerate. Cycling the key may correct the concern, clearing the code from the PCM will correct it temporarily. If you can monitor data stream, at idle the ICP pressure normally is 400-700 PSI and the IPR duty cycle is 9-14%; at cruise, ICP is 700-1200 pSI and IPR is 15-20%; under normal acceleration, ICP is 1200-2000 PSI and IPR is 20-30%; and under WOT accel, the ICP is up to 3600 PSI and the IPR is 35% or higher. When the above symptom occurs, typically the idle ICP reading will be normal, but the IPR duty cycle will be high--over 20% and up to the max 50%. A "blow-by" condition has occured somewhere in the HP oil circuit. If you can get the problem to re-occur with some frequency, the most probable cause is worn or deteriorated injector or IPR o-rings. If the problem is intermittent, it could be a sticking IPR valve. Replace the injector o-rings with the latest-level kits--F8TZ-9229-AA. When replacing the IPR, make sure you get the correct part for the build date/serial number of your engine.