Never asked this question since installing my SGII. At 60 MPH my IPR reads about 40% and the ICP reads about 1500 PSI. The IPR will jump rapidly to 60 to 80 % when accelerating with about 20 PSI of boost. Are these readings OK? Just replaced the ICP for the second time in 117K and have never removed or replaced the IPR. X is an '04 with '03 motor. Yeah, I just love to change the ICP!

Noticed recently that on a few ocassions, the X takes longer to start but once running, purs like a kitten. Potential HPOP or STC fitting failure?

ED

 

No STC fitting on the early motors. Usually the HPOP gives out.

80% @ near 4000 psi is good.

Josh

 

Thanks, Josh.

Looks like an HPOP is in my future.

Ed