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What does high to low side open mean?

What does high to low side open mean?

“high to low side open” or “circuit” codes found after the injector buzz test indicate that the signal from the IDM is not reaching the injector solenoid. Check UVC wiring (connecting to injector solenoid), external wiring to gasket pass-through harness at valve cover, and/or replace IDM.

What is DTC code for Ford 7.3 Powerstroke?

Ford 7.3 Powerstroke Diagnostic Trouble Code List DTC. If you are getting a check engine light on your 94-03 Ford 7.3 Powerstroke Diesel engine, use a code reader to find out what the code is and look it up on this list to help you find the problem. p1111 System Pass (No DTCs Available) P0107 BARO Circuit Low Input. P0l08 BARO Circuit High Input.

Which is the best injector for a 99-03 7.3L?

(99-03) 175/146: The 175/146 injectors are a terrific upgrade for those 99-03 7.3L owners looking for efficiency as well as a modest power increase. The 175 single shot injectors retain the OEM (“146” nozzle), use no more high pressure oil than stock AD split shot injectors, yet flow 25+ cc’s more of fuel.

What should the ICP be on a Ford 7.3?

At idle, ICP should be 550-700psi for Federal, 400-600 for California and stable. should be at least 500psi, at least 100RPM, and FuelPW 1mS-6mS. Once the PCM until ICP reaches starting pressure. and IAT should be within 10 degrees of each other, Key On Engine Off.

What causes low ICP on a Ford PowerStroke?

1. Refer to other hard start or no start issues below 2. IPR (Injection Pressure Regulator) bad, will cause low ICP. Buy 7.3 IPR Valve 3. IPR o-rings bad, will cause low ICP. Buy IPR O-ring kit for 7.3 Powerstroke 4. Injector o-rings bad, will cause low ICP. Should also show up as black fuel (from oil in fuel) in fuel filter canister.

(99-03) 175/146: The 175/146 injectors are a terrific upgrade for those 99-03 7.3L owners looking for efficiency as well as a modest power increase. The 175 single shot injectors retain the OEM (“146” nozzle), use no more high pressure oil than stock AD split shot injectors, yet flow 25+ cc’s more of fuel.

1. Refer to other hard start or no start issues below 2. IPR (Injection Pressure Regulator) bad, will cause low ICP. Buy 7.3 IPR Valve 3. IPR o-rings bad, will cause low ICP. Buy IPR O-ring kit for 7.3 Powerstroke 4. Injector o-rings bad, will cause low ICP. Should also show up as black fuel (from oil in fuel) in fuel filter canister.

What to do when Ford 7.3L Power Stroke DTC?

Click here to view this document as a PDF (right-click to download). When Ford 7.3L Power Stroke Injection Control Pressure (ICP) diagnostic trouble codes (DTC) are present one usually checks the high-pressure oil supply system and related electrical circuits.

What kind of Powerstroke injectors do I Need?

(95-03) 200/200%: 200cc hybrid injectors with a 200% larger than stock nozzle (while retaining factory HPOP). Custom tuned chip included. (95-03) 238/200%: 238cc hybrid injector with a 200% larger than stock nozzle. For competition use. Custom tuned chip included. (95-03) 300/200%: 300cc hybrid injector with a custom, 200% high flow nozzles.

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Ruth Doyle