Re: OT Chevy Lumina

Posted by Revredneck on March 28, 2006 at 06:10:41 from (4.224.51.251):

In Reply to: Re: OT Chevy Lumina posted by gab on March 27, 2006 at 19:44:46:

I agree with gab. Sometimes the fuel pressure regulator will rupture and leak raw fuel into the intake through the vacuum line, making her run rich. If that's not the cause, then you need to check for a leaking injector. Hook up a good fuel pressure gage, then turn on the ignition without starting and watch the gage. It should reach full pressure (about 30-35 psi) and hold there for at least a few minutes. If it leaks off and the regulator isn't leaking (not likely), then pull the fuel rail out with the lines still attached and do the leakdown test again while watching the injector tips. If there is any leakage, replace that injector. Hope this helps.
Good Luck and God Bless,
Tommy

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