Spark Plugs

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Apr 26, 2007 | 12:03 PM

radiantRX-7

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From: Florida

Spark Plugs

Any one know why my trailing plugs smelt like fuel and were wet, and the leading ones had a lot of carbon build up?
Anyway I just changed them and the car feels a lot better now.

Apr 26, 2007 | 12:06 PM

Zar

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From: Bay Area

Your car is running rich.

I suggest changing your 02 sensor if you already haven't.

Apr 26, 2007 | 12:20 PM

Mahjik

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How old are the plugs?

Apr 26, 2007 | 01:44 PM

Sgtblue

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From: Mid-west

And were they stock heat ranges?

Apr 28, 2007 | 12:44 PM

radiantRX-7

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The last time I changed them was about 10k miles. roughly 3 oil changes. Stock heat ranges. And i changed the 02 sensor about 4 months ago.
Thanks

Apr 28, 2007 | 10:59 PM

cewrx7r1

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From: In A Disfunctional World

Unfortunately this is very common due to Mazda's poor tuning of the stock ecu.
Buy a PFC and have it properly tuned and your plugs should stay clean along with your exhaust. But that depends on the tuner also.