Power Strokes 1994-1997 Upgrades and AftermarketUpgrading or adding OEM or aftermarket equipment to your 1994-1997 Ford F-Series with Power Stroke engine.
Today tried the 10k mod and found it didnt do anything for me. I put a 6.2k inline with a variable 10k resistor, then dialed it into a total of 10k. I then plugged it in and flipped the switch and nothing happed. The idle didnt change, no power difference. I varied the resistance all the way from 6.2 to 16.2 and found no difference at either setting. Removed that bit and installed a straight 4.5k and it didnt seem to do anything either. I figured I would at least get the bad idle everyone talks about. I checked my wires that went into the ipr and each had voltage on them (@12volts) when the key was on. This tells me they were making contact. I am just puzzled by it. Everyone seems to get a noticeable differance but absolutely nota for me. I am sure I put the wires into the right holes on the IPR sensor plug.
Any ideas on the cause or cure.
Many thanks
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TRADED: 97 F250 CC SB 4WD 106,000miles. Tymar intake, IDM mod, shimmed FPR, CCV mod, 203 t-stat, coolant filter mod., MBRP 3-4" sraight through, HPXover, Wildman 6 position.
For the tranny some Schaffers, Tru-cool cooler, sonnex and springs and T/C lockup.
FOR A:
99F350 CC SB 4WD 130k Miles..Stock so far
I checked my wires that went into the ipr and each had voltage on them (@12volts) when the key was on. This tells me they were making contact. I am just puzzled by it. Everyone seems to get a noticeable differance but absolutely nota for me. I am sure I put the wires into the right holes on the IPR sensor plug.
Any ideas on the cause or cure.
Many thanks
None of the connectors in the ICP plug should read 12 volts. The highest voltage is about 5v. All of the sensors are on a 5v setup. Are you sure you had the IPR?
Jerry
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Black 2010 Ford F250 XLT Crewcab Longbed 4x4 6.8L V10. Special Ordered. 295/70r18 Nitto Terra Grapplers on black powdercoated stock wheels, Harley Davidson Edition headlights. FX4 Grille. Recon smoked cab lights and mirror lenses. Factory bumpers and nerf bars have been powdercoated black.Husky Mudflaps,custom black 4" exhaust, AirAid intake, X3 tuner from 5 Star Tuning, AutoVentShade door sill protectors. Soon will black out the badges.
Last edited by Jerry Miller; 02-28-2009 at 03:30 PM.
I had something like .06 volts on them when I started. Then when nothing was hapening I checked voltage again on the 2 legs and had 12 volts. Thats what I was kind of wondering was a bit off. I had the key on where the glow plugs were warming when I took voltage. Im going to go try it again now in a few minutes.
Thanks for your reply
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TRADED: 97 F250 CC SB 4WD 106,000miles. Tymar intake, IDM mod, shimmed FPR, CCV mod, 203 t-stat, coolant filter mod., MBRP 3-4" sraight through, HPXover, Wildman 6 position.
For the tranny some Schaffers, Tru-cool cooler, sonnex and springs and T/C lockup.
FOR A:
99F350 CC SB 4WD 130k Miles..Stock so far
Sounds like we might have some terminology confusion going on here. The Injector Pressure Regulator (IPR) is the solenoid valve on the bottom of the HPOP. It has a 2 wire plug, one wire is +12V when the key is on, the other is a modulated ground controlled by the PCM. The 10K mod does NOT go on this circuit.
The injector control pressure (ICP) sensor has a 3-wire plug and is mounted on the front of the driver's-side head. This is where the 10K resistor goes (although I'm not sure which wires it involves).
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1997 F350 CC DRW E4OD POS. electric fuel, DIY6637, Beans Stage I. 200k and counting. webshots
Sounds like we might have some terminology confusion going on here. The Injector Pressure Regulator (IPR) is the solenoid valve on the bottom of the HPOP. It has a 2 wire plug, one wire is +12V when the key is on, the other is a modulated ground controlled by the PCM. The 10K mod does NOT go on this circuit.
The injector control pressure (ICP) sensor has a 3-wire plug and is mounted on the front of the driver's-side head. This is where the 10K resistor goes (although I'm not sure which wires it involves).
I apologize. I meant to type ICP not IPR. Thanks for catching that. I will edit my post.
Jerry
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Black 2010 Ford F250 XLT Crewcab Longbed 4x4 6.8L V10. Special Ordered. 295/70r18 Nitto Terra Grapplers on black powdercoated stock wheels, Harley Davidson Edition headlights. FX4 Grille. Recon smoked cab lights and mirror lenses. Factory bumpers and nerf bars have been powdercoated black.Husky Mudflaps,custom black 4" exhaust, AirAid intake, X3 tuner from 5 Star Tuning, AutoVentShade door sill protectors. Soon will black out the badges.
Ok Im back. Yes I was checking the ICP. Voltage issue solved. Bad battery in meter. Had to get a new 9 volt. It does that to me every once in awhile. I've been stung on that before. So I dont have 12 volts. 5 volts on one leg, .03 volts on another, and I think .03 on the 3rd if I remember right. Anyhow...Should I be feeling something. I dont have a chip yet so that isnt an issue. I sit idling and run it from the 6.2k to the 16.2k and no differance. Then turn the switch off and still no differance.
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TRADED: 97 F250 CC SB 4WD 106,000miles. Tymar intake, IDM mod, shimmed FPR, CCV mod, 203 t-stat, coolant filter mod., MBRP 3-4" sraight through, HPXover, Wildman 6 position.
For the tranny some Schaffers, Tru-cool cooler, sonnex and springs and T/C lockup.
FOR A:
99F350 CC SB 4WD 130k Miles..Stock so far
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