I just replace my lift pump and the VP44. After I finished replacing them, I test drove the truck andit ran fine but the oil pressure was pegged on the guage. So I replaced the oil pressure sensor switch. It did not fix the problem. Does anyone have a suggestions on what it might be?

I was told it might be the computer. I hope not.

 

Try cleaning the sensor plug and or the PCM harness connection electra-cleen.

 

put manual gage on and check your pressure. also check area that you worked around for pinched wires

 

What did ya find out??