Mechanics

THE CHECK ENGINE LIGHT COMES AND GOES.

1999 Pontiac Bonneville • 175,000 miles

Its running code P0300. There is a gas leak from in the gas line the fuel filter to the fuel pump. Is it that? Only misfires when car is warmed up. I have changes the spark plug, plug wires, ignition coil, fuel filter, and alternator. Ignition module tested good.
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Tinoco01
January 6, 2012.




You only have a code P0300?Have you checked for vacuum leaks?

Saturntech9
Jan 6, 2012.


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