nomoneyz

iTrader: (15)

My car is showing around 38 when idling and under full throttle it shows about 44. Stays steady doesn't drop or go back and forth. I thought this sounded kind of low and so did the techs at work so I figured I would ask here. Any help is appreciated. Thanks

fergymoto

iTrader: (129)

Normal is roughly 43.5

Kmaroman

iTrader: (1)

What year camaro is it?

SS RRR

iTrader: (2)

Which should be measured with vacuum off the FPR.

James Montigny

iTrader: (13)

That's normal, the fuel rail should show 39 or so with the motor not running
then 43.5 once you fire it up. Are you measuing with a mechanical gauge at
the fuel rail?

Formula350

iTrader: (3)

+1 and should hold that pressure too when the pump stops priming, and not drop fast or slow. Slow would be better than fast though Well, I guess relatively speaking... K... just, NM haha

ElkySS

iTrader: (6)

wat about with a walbro pump?

Formula350

iTrader: (3)

Still is going to be what the regulator regulates it to So unless it's adjustable and has been messed with, it'll still be the same. Now, if you tested the pressure PRE-regulator, you'd get whatever the pump puts out for PSI. That's not what you do though.

Kmaroman

iTrader: (1)

Anyways 93s have lower fuel pressure 38-42 so don't worry much if it is

Formula350

iTrader: (3)

Never heard that one. Smaller injectors (22#), but not lower fuel pressure.

James Montigny

iTrader: (13)

Same here.

nomoneyz

iTrader: (15)

Ok, good. I thought it was low but since its normal i'm happy. Its on my 95 Z28. I was using a mechanical gauge and hooking it up to the fitting behind the intake manifold.