Mechanics

THE CHECK ENGILE LIGHT COMES AND GOES. ITS RUNNING CODE P0300. THERE IS A GAS LEAK FROM IN THE GAS LINE THE FUEL FILTER TO THE FUEL PUMP. IS IT THAT?

1999 Pontiac Bonneville • 175,000 miles

Only misfires when car is warmed up. I have changes the spark plugh, plug wires, ignition coild, 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.