Lexus ES 300 - Popular Questions, Answers, Tips & Manuals - Page 7
My 1999 lexus es300 is still reading the codes P0300, P0302,P0303 after giving it a tune up.
Your codes indicate misfires. What was done in the "tune up"? Misfires can be caused by any of several different causes including (but not limited to):
spark plugs
spark plug wires
coil packs
injectors
injector wires
The term "tune up" used to mean, "replace points, condenser, distributor cap and rotor, and plugs". Since most cars no longer have points, condenser, distributor cap and rotor, we need to ask what was done...
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