1JZ VVTI High Oil Pressure

[1Jzed]

I have the stock oil pressure guage in my mk3 hooked up to the 1jz, on a cold start the guage maxes it self out to 120psi, and at warm its 40psi, and at WOT or just normal cruising above 2k rpms its at 100psi.

This is crazy high, i work as a valet and even the heavy duty dually diesel engines only run like 60psi at start.

 

[hvyman]

Are you using the 7m oil pressure sensor?

 

[1Jzed]

the previous owner did the swap and I think he might have used the 7m sensor. any thread somewhere that tells you how to fix it? or how to install an aftermarket one? ill do some searching

 

[hvyman]

I would suggest an aftermarket electronic if you going to replace it. But jz engines have a lot more oil pressure than a 7m. Mine would go from about 30psi at idle to 80 at higher rpm.