How does PCM control fuel delivery to injectors?

The PCM can control fuel delivery to the injectors by increasing the IPR duty cycle which increases fule pressure through the injector nozzels. PID: IPR (% of duty cycle), MFDES power. 0 volts at idle, 12 volts off idle. PID: IVS order to minimize smoke. It also optimizes injection timing for detected boost. It also monitor

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.

How does the PCM control the high pressure oil system?

PID: FuelPW Fuel Pulse Width signal from PCM Output; The PCM controls the high pressure oil system by varying the duty cycle of the IPR. (open valve), 100%=full flow to injectors (closed valve). The PCM monitors the system with the ICP input. The PCM can control fuel delivery to the injectors by increasing the IPR duty cycle

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.

Where is the fuel injector error code stored?

Basically, this code only ever gets stored on the Powertrain Control Module of diesel engines. This code indicates that the vehicle´s PCM has detected an inconsistency between the electronic fuel control actuator´s signal voltage that was sent out and the one returned by the fuel metering sensor control.

How does PCM control fuel delivery to injectors?