1990 Pontiac 6000 fuel volume test

1990 PONTIAC 6000
125,000 MILES • 6 CYL • FWD • AUTOMATIC
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DOUGWERNER
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  • 4 POSTS
can i test the fuel volume output at the test port on the fuel rail? with a press. gauge hooked up i get 40+ press. when i hit the key : the car will start eventually(pumping the pedal) will idle good but when i try to give it gas it just dies out not sure if its a fuel or an air problem could it be a pressure reulator or a mass air flow sensor, the car ran good then just quit thought it was the fuel pump, pulled it out then put 12v to it and it seemed good put it back and put a j-yard computer in it- trying to avoid towing it to a shop and those costs any suggestions
Dec 4, 2009 at 3:16 PM
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HMAC300
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  • 48,601 POSTS
replace the fuel filter, the 40 # should be enough to run the car. You could also have a bad vacuum line to the map sensor or sensor itself.but see if there are any codes first. you may also have a bad tps...
Feb 24, 2010 at 6:04 PM