Tapping for fuel pressure reading (Post Liftpump)
- Thread starter LarryJewell
- Start date
I've driven around all day, and its really disheartning watching that gauge suck down with the throttle. I really would be happy to see it sitting at 9 psi all the time like it was yesterday before I moved the sensor, but with the sensor in its new location 
Its shimmed and ported
I dont have trouble maintaining rail pressure, I do wonder how though since I'm pulling the gauge so far down. WOT on a 2800 PW and I pulled the gauge down to 3 psi
3psi is still a positive pressure Larry! That means your still getting enough fuel.
Gm doesn't even reccomend a filter change with stock tuning until -5psi which leads me to believe the CP3's are designed to work with a bit of a negative draw on them.
FWIW, mine is at -2psi with a new filter at idle-no lift pump.
I've driven around all day, and its really disheartning watching that gauge suck down with the throttle. I really would be happy to see it sitting at 9 psi all the time like it was yesterday before I moved the sensor, but with the sensor in its new location
I think its time you changed to a bigger fuel line
Even at idle mine is 9 psi and doesnt seem to move,but ive only gotton to 1/2 throttle
I like the fass over my KDs but it SOO loud
I think its time you changed to a bigger fuel line
Even at idle mine is 9 psi and doesnt seem to move,but ive only gotton to 1/2 throttle
I like the fass over my KDs but it SOO loud
Did we rubber mount that thing? Maybe it would help if we did?
Dale let checkout the fass and then move on to outside dieslel performance stuff
something with 3/4" in out and big volume capability
something with 3/4" in out and big volume capability