magnumP5 said:Are these cars supposed to retain fuel pressure inside the fuel rail indefinitely? I ask because even though my fuel pressure gauge on my fuel rail says I meet all the requirements mentioned in the FSM. I have noticed that if I don't drive my car for a while, say over night, that when I come out the next day there is no pressure in the rail. I just want to know if this is normal or not because I'm trying to to determine if I have any small leaks. When the car is running, the rail holds a constant 35 psi and when I turn the car off it goes up to roughly 40 psi where it stays for a while (much longer than 5 minutes as stated by the FSM) but ultimately, over several hours, it slowly goes down and down. Indicative of a fuel leak or just normal?
Figured I'd ask you MSP guys this as well:
Yeah, one of the P5 guys said something similar. I just wanted to make sure the pressure drop wasn't the result of a leak. So far no CEL since it was cleared Saturday morning and the idle has seemed better since I cleaned the air filter. Only time will tell if the CEL comes back on or if the idle screws up again. There's really only one other place I can think of to look for a leak and that's the connection between the fuel hose and the Perrin fuel rail. It was sealed when I received it so I assume all is well but perhaps there's a small leak coming from there? If I keep getting problems I'll have to undo that connection and wrap the threaded hose end in teflon like I did for my fuel pressure gauge.i'm not 100% on this. but it seems to me that fuel pressure wouldn't stay constant as time goes on w/ the car off. cuz to me it would go back to the fuel tank or return line.. i would imagine that the fuel pump is what keeps the pressure on the gas in the rail. so. i would think this sounds normal.
Ooo, Tru-Boost. How's that working for you? I assume it's reading "0" because the car is off?
Looks Hawt Charles!! Nice setup, I was thinking about getting a truboost, how do you like it so far?