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Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 578
bad vacumme line bad pump cloged pump sock leaking hose from pump need more info
Last edited by antfarmer2; Sep 13, 2015 at 07:05 PM.
Thread Starter
Heel & Toe
Joined: Sep 2015
Posts: 23
Likes: 0
key on engine off, fuel pressure starts at 45, then drops within 5 seconds to 10 psi.
cleaned gas tank
cleaned sending unit
new fuel Pressure Regulator 9-11-15
new Intake Gasket 9-11-15
new tune up 8-31-15
new fuel filter 8-15-15
new pick up coil for distributor 9-1-15
new iavc 9-3-15
new throttle body gasket 9-3-15
new the maf sensor9-3-15
brand new radiator 9-4-15
new thermostat and gasket 9-4-15
new relay for cooling fan 9-4-15
new fuel pump 9-13-15
cleaned gas tank
cleaned sending unit
new fuel Pressure Regulator 9-11-15
new Intake Gasket 9-11-15
new tune up 8-31-15
new fuel filter 8-15-15
new pick up coil for distributor 9-1-15
new iavc 9-3-15
new throttle body gasket 9-3-15
new the maf sensor9-3-15
brand new radiator 9-4-15
new thermostat and gasket 9-4-15
new relay for cooling fan 9-4-15
new fuel pump 9-13-15
Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 578
take a look at the hose in the tank from the pump sounds loose or you got a bad pump.
did this just start doing this?
could be bad injectors too
any fuel in the oil?
did this just start doing this?
could be bad injectors too
any fuel in the oil?
Last edited by antfarmer2; Sep 13, 2015 at 07:52 PM.
Thread Starter
Heel & Toe
Joined: Sep 2015
Posts: 23
Likes: 0
when I installed the new fuel Pressure Regulator Saturday the problem started .key on engine off, fuel pressure starts at 45, then drops within 5 seconds to 10 psi. when I had the old fuel Pressure Regulator key on engine off, fuel pressure starts at 45, then when I stared engine 40psi to 42psi
Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 578
when I installed the new fuel Pressure Regulator Saturday the problem started .key on engine off, fuel pressure starts at 45, then drops within 5 seconds to 10 psi. when I had the old fuel Pressure Regulator key on engine off, fuel pressure starts at 45, then when I stared engine 40psi to 42psi
Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 578
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Thread Starter
Heel & Toe
Joined: Sep 2015
Posts: 23
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The reason I pUT all the new things on my Corvette was from the beginning when I started it it would stay on for a little bit turn off and eventually would stay on after few minutes but then when I went someplace I turned it off it wouldn't start up again was hard to do after eight or nine times it would stay on
Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 578
so once you got it running it ran good? when and where do you smell fuel? out the exaust the oil or the vacumme line? before you changed the fpr how long would it hold pressure? does the oil smell like gas now? how many miles on it and are the injectors original?
Burning Brakes
Joined: Jun 2000
Posts: 865
Likes: 6
From: Auburn Michigan
Make sure you didn't nick one of the many o-rings on the fuel rail and it's leaking.
Thread Starter
Heel & Toe
Joined: Sep 2015
Posts: 23
Likes: 0
yes it ran good until I turned it off and tried to restart it took 8 tries im not sure where the smell is coming from. once started it held pressure 40-42 psi 73,000miles
injectors are original no the oil doesn't smell like gas
injectors are original no the oil doesn't smell like gas
Safety Car
Joined: Nov 2009
Posts: 3,963
Likes: 337
From: Adelaide South Australia
what sort of regulator did you put in, what brand ?
if it holds pressure while its running then i wouldnt stress too much.
the standard regulators were designed to hold pressure due to EPA regulations governing evaporation of fuel from fuel systems.
I have run aftermarket regs in my TPI and single plane intakes that drop to zero almost instantly the engine is shut off, but they dont affect the way engine runs.
if it holds pressure while its running then i wouldnt stress too much.
the standard regulators were designed to hold pressure due to EPA regulations governing evaporation of fuel from fuel systems.
I have run aftermarket regs in my TPI and single plane intakes that drop to zero almost instantly the engine is shut off, but they dont affect the way engine runs.
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
you have two threads with the same issue....sounds like either the check valve is bad in your pump or the lines just above the pump are loose or cracked....if you had to clean the tank and the sender, probably would have been a good time to change the pump, considering you threw so many parts at it anyway...
Thread Starter
Heel & Toe
Joined: Sep 2015
Posts: 23
Likes: 0
what sort of regulator did you put in, what brand ?
if it holds pressure while its running then i wouldnt stress too much.
the standard regulators were designed to hold pressure due to EPA regulations governing evaporation of fuel from fuel systems.
I have run aftermarket regs in my TPI and single plane intakes that drop to zero almost instantly the engine is shut off, but they dont affect the way engine runs.
if it holds pressure while its running then i wouldnt stress too much.
the standard regulators were designed to hold pressure due to EPA regulations governing evaporation of fuel from fuel systems.
I have run aftermarket regs in my TPI and single plane intakes that drop to zero almost instantly the engine is shut off, but they dont affect the way engine runs.
Oil Producer
Joined: Apr 2014
Posts: 9,350
Likes: 2,726
Going to venture to say that if u inspect the fpr hoses, you might find cracked or damaged from the swap. if not, get another fpr as the new one clearly isn't working as well as the previous one.
then if your injectors are originals, i'll venture they need to be replaced. i am actually surprised Aklim hasn't said that yet. what is the name of the guy everyboy uses here?
and finally, as others have said, check the hoses at the fuel pump.
also, try the pedal to the floor trick to clear the injectors and see if it starts. at least this will tell you if your injectors are flooded??
then if your injectors are originals, i'll venture they need to be replaced. i am actually surprised Aklim hasn't said that yet. what is the name of the guy everyboy uses here?
and finally, as others have said, check the hoses at the fuel pump.
also, try the pedal to the floor trick to clear the injectors and see if it starts. at least this will tell you if your injectors are flooded??
Last edited by VikingTrad3r; Sep 14, 2015 at 11:25 AM.
Instructor
Joined: Nov 2012
Posts: 242
Likes: 4
From: Grand Island - Nebraska
Going to venture to say that if u inspect the fpr hoses, you might find cracked or damaged from the swap. if not, get another fpr as the new one clearly isn't working as well as the previous one.
then if your injectors are originals, i'll venture they need to be replaced. i am actually surprised Aklim hasn't said that yet. what is the name of the guy everyboy uses here?
and finally, as others have said, check the hoses at the fuel pump.
also, try the pedal to the floor trick to clear the injectors and see if it starts. at least this will tell you if your injectors are flooded??
then if your injectors are originals, i'll venture they need to be replaced. i am actually surprised Aklim hasn't said that yet. what is the name of the guy everyboy uses here?
and finally, as others have said, check the hoses at the fuel pump.
also, try the pedal to the floor trick to clear the injectors and see if it starts. at least this will tell you if your injectors are flooded??
Jon At Fuel Injector Connection can help you. Ohm them all out first to se if any are different than the others.
Oil Producer
Joined: Apr 2014
Posts: 9,350
Likes: 2,726