isspro ev2 fuel psi.
 

just got some gauges a few weeks ago and my fuel pressure gauge bounces back and forth between 7 and 15 while idleing. is this normal? while cruising it hangs right at 12 but as soon as i stop at a light/stop sign it just bounces back and forth between 7 and 15. it's sort of annoying. any thoughts?
thanks
zach

no one knows if this is normal or not?

I have the same guage. Mine doesn't bounce at all. Reads 18psi. My guess is air in the line. It took me several trys to get the air out.

well now it has been more than 10 days and still nothing has changed. could it be a bad gauge? maybe the wiring? any suggestions?

I had a problem like that with an Autometer that I used to run. It turned out that I had air in the line. Very difficult to bleed the air, but once it was bled the gauge read properly.

My EV2 FP gauge bounces between 8-10 at idle, but stays right on when I am accelerating or crusing. I see you have an aftermarket fuel pump in your sig, maybe another question arises here - is this normal for that pump?

Have you tried to bleed your lines? I am supposing that you would want to do it at the engine? Loosen your line there and cycle your key a couple times?



CD