Mechanics

TOYOTA AVALON COMPRESSION PROBLEM

1998 Toyota Avalon • 206,000 miles

Jhjace@yahoo. Com20, P0300, P0304, P0305, and P0302 for 1998 Toyota Avalon. Car stumbles and misses, feels like it's about to die at anytime, but doesn't. Sounds like a I am riding on a flat tire when I acceletate.I changed the wires and spark plugs. Get the same codes. Any suggestions.
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Jhawkace
December 22, 2012.



Miss fires come from plugs, wires, coil, injector failure/dirty or vacuum leaks.

I would start with basics. Did you do a compression test?

Roy

ASEMaster6371
Dec 22, 2012.