98 Camaro Losing Fuel pressure when turned off
07-30-2015, 11:44 AM
#1
98 Camaro Losing Fuel pressure when turned off Good Day fellow Tech members!
I have posted this in the Fuel section already but I know alot of us dont really browse other section than the "Texas Section"
So........
I recently bought a 98 Camaro SS with a couple of mods done to it.
When it comes to the fuel system it does have a Racetronic fuel pump with hotwire kit, aftermarket fuel rails with a gauge and 42# Green Tops.
When I bought the car I was told it had an issue but they were not sure if was a fuel issue or valve floating. From what I've noticed usually when I turn off my car with about a quarter tank the pressure decreases at a decent pace.
When I turn off the car and it has more than half a tank, the pressure decreases at a slower pace than with less gas.
Either way its losing pressure and I know 98 Fbody fuel system are different from 99-02.
I tried doing some research on the FPR ( Fuel Pressure Regulator ) and I want to say this is the issue. If this is the issue is there a good replacement for it due to them going out so often? ive also seen some say use a corvette fuel filter setup but im not too clear on what to do.
Any suggestions, opinons or .02 cents would greatly be appreciated.
Thank you.
I have posted this in the Fuel section already but I know alot of us dont really browse other section than the "Texas Section"
So........
I recently bought a 98 Camaro SS with a couple of mods done to it.
When it comes to the fuel system it does have a Racetronic fuel pump with hotwire kit, aftermarket fuel rails with a gauge and 42# Green Tops.
When I bought the car I was told it had an issue but they were not sure if was a fuel issue or valve floating. From what I've noticed usually when I turn off my car with about a quarter tank the pressure decreases at a decent pace.
When I turn off the car and it has more than half a tank, the pressure decreases at a slower pace than with less gas.
Either way its losing pressure and I know 98 Fbody fuel system are different from 99-02.
I tried doing some research on the FPR ( Fuel Pressure Regulator ) and I want to say this is the issue. If this is the issue is there a good replacement for it due to them going out so often? ive also seen some say use a corvette fuel filter setup but im not too clear on what to do.
Any suggestions, opinons or .02 cents would greatly be appreciated.
Thank you.
07-30-2015, 03:04 PM
#6
Yes it is that's why I said there's a check ball valve inside the tank I believe yours probably bad . That's why I asked if it takes more than once to crank over cuz once you start priming it it should be no problem because the pump is pushing fuel to the rails
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07-31-2015, 05:56 PM
#15
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What type of regulator is it? My Aeromotive FPR loses pressure at a good pace after shut down, but they clearly state in their notes that the regulator is not designed to hold pressure. In fact, I think most aftermarket FPR dont hold pressure.