The IPR Valve, also known as Injection Pressure Regular Valve, is a by-pass valve that controls the high oil pressure depending on the demand.
The PCM controls the high pressure oil system by varying the duty cycle of the IPR. The IPR controls the oil bypass circuit of the high pressure pump. 0%=full return to sump (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 which increases fuel pressure through the injector nozzles.
This product is in the following categories:
Ford 7.3L Powerstroke 94-97
Part #: 522-007
With Edge Filter
Part #: 522-008
Without Edge Filter