ZR-1 Net Registry Forums - View Single Post - testing the ALCL. poor cold start running

Karl · 05-12-2014

I am beginning to think I may have a fuel problem

Is there anything specific about the ZR-1 fuel system any care to share?

In particular how the fuel pumps work?

I just connected a fuel pressure gauge and it would not move past 20 psi at idle and it bounced maybe to 25 psi while driving the car.

I think either my fuel filter is clogged or the problem lies within the fuel pumps and or assembly.

I put the gauge on my daily driver Malibu and it held 30 psi so I know the gauge is working.

Is this normal fuel pressure for the LT-5?

05-12-2014	#8
Karl Join Date: May 2013 Location: Chicago Posts: 982	Re: testing the ALCL. poor cold start running I am beginning to think I may have a fuel problem Is there anything specific about the ZR-1 fuel system any care to share? In particular how the fuel pumps work? I just connected a fuel pressure gauge and it would not move past 20 psi at idle and it bounced maybe to 25 psi while driving the car. I think either my fuel filter is clogged or the problem lies within the fuel pumps and or assembly. I put the gauge on my daily driver Malibu and it held 30 psi so I know the gauge is working. Is this normal fuel pressure for the LT-5?