SPARK PLUGS

Mazda Protege

Tiny

Laura Jackson

April, 9, 2007 AT 2:25 PM

MY SPARK PLUGS KEEPING GOING BAD. I REPLACE THEM AND THEY HAVE OIL OR ARE BLACK. WHAT CAUSES THIS?
1994 MAZDA PROTEGE 1.8L DOHC 110,000MILES

FOUND 5379 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

April, 11, 2007 AT 7:51 AM

What kind of tune up parts did you replaced? Oil on the sparkplug can be a ring/valve seal/valve problem etc.

Did you check the ignition timing?

When it refuses to start check for spark and comeback.

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