Fuel Rail Gauges

[blazzin1]

Originally Posted by NavyDood

Never realized our LS3 and L99 engines ran such wimpy rail pressures if all you would need is a 0-100psi gauge. Then again we are talking gas engines.

I thought the pressure was kind of high myself! Mine usually idles right around 75-80 psi. I guess I was just always used to the old school (non-fuel injected) cars which use only a 0-15 psi gauge.

[blazzin1]

Originally Posted by pouncer72

Serves no purpose other then potentially leaking fuel onto your motor and creating a potential fire hazard. You've got a pulsed pcm fuel system. What good could possibly come from a gauge like this.

If I ever have a problem with my car starting or dying after start-up, I can tell if I have a fuel system problem in about 2 seconds.