What causes no fuel pressure with key on, ignition off?

MississippiMaro

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Join Date: Mar 2002

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#1

What causes no fuel pressure with key on, ignition off?

12-18-2003, 12:34 PM

Whenever i turn the key on but not the engine there is no fuel pressure.

When i crank it, the fuel pressure goes up to 35 and is relatively steady, then after the car is turned off, it slowly loses pressure over an hour or so.

The fuel pump voltage is between 13.1 and 13.2 volts when driving, so i don't think it's a fuel pump problem.

1993 Camaro 3.4L A4 many mods comin for 2004<br /><br />\"The last thing I wanted was to get in a fight in Jackson, Mississippi on a Saturday night\"
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3.4 slow to go

CHimp Nipple

Not Old, I Am A Classic

Join Date: Jul 2001

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#2

12-18-2003, 01:16 PM

Sounds like your fp is crapping out on you. Does it even run now?

1978 Formula 461 in progress of being built :rock:
2013 Ram 1500 Big Horn

former owner of 85 bird w/ 2.8 - 3.4 - 3800 II - 5.0
94 comero 3.4
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MississippiMaro

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#3

12-18-2003, 01:24 PM

Yeah it runs, but it gets ****ty gas mileage and it runs rough, plus it puts white smoke out the back that smells like fuel.

1993 Camaro 3.4L A4 many mods comin for 2004<br /><br />\"The last thing I wanted was to get in a fight in Jackson, Mississippi on a Saturday night\"
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