icp sensor reads oil pressure from driver side head its a input to the computer
so when its idling or accel the ipr vavle is the output from pcm to regulate the amount of oil pressure to feed injectors depending on demand

 

I needed to know too thanks.

 

Yep, ICP is the sensor, IPR is the actuator.

 

The HPOP is a positive displacement pump, it puts out a fixed amount of volume per revolution, if this oil doesn't have anywhere to go, pressure will build really quick. The IPR cycles between open and closed to increase or decrease this pressure, controlled by the PCM to meet the needs of the injectors. The IPR senses this the pressure created by those two components, and relays said data to the PCM for further decisions.

 

The HPOP is a positive displacement pump, it puts out a fixed amount of volume per revolution, if this oil doesn't have anywhere to go, pressure will build really quick. The IPR cycles between open and closed to increase or decrease this pressure, controlled by the PCM to meet the needs of the injectors. The ICP sensor senses this the pressure created by those two components, and relays said data to the PCM for further decisions.

he just goofed.... I fixed it

 

The IPR does not send anything. It is a reciever only. The ICP does not "do" anything, it is a sensor only.

 

Thanks guys, that cleared it up for me.