For those with "In Car" fuel pressure gauges

[Daggar]

How much pressure variance (fluxuation) are you seeing at idle during warm up?

I have a suspicion that my fuel regulator may be on it's way out.

 

[Wallzy]

My needle is still and doesn't move, i think you might be right but make sure it's not your gauge or sender first (if it's not mechanical).

 

[the pony boy]

no movement but ant blip of the throttle and it moves. phil

 

[bluevenom867]

Hmm,well mines carburated but the basic principle applies,my gauge wont fluctuate unless Its getting low on fuel or the battery volts drop.

Im assuimng your regulator is boost refranced,so it should rise as the pressure in manifold rises. But at idle yea it should be stable....

How much variance are you getting?