Spark Plugs

Reply Subscribe

Thread Tools

Search this Thread

04-26-07, 12:03 PM

radiantRX-7

Senior Member

Thread Starter

iTrader: (1)

Join Date: Dec 2002

Location: Florida

Posts: 545

Likes: 3

Received 0 Likes on 0 Posts

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.

Reply Like

04-26-07, 12:06 PM

Zar

You Fail

Join Date: Apr 2007

Location: Bay Area

Posts: 83

Likes: 2

Received 0 Likes on 0 Posts

Your car is running rich.

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

Reply Like

04-26-07, 12:20 PM

Mahjik

Mr. Links

iTrader: (1)

Join Date: Aug 2001

Location: Kansas City, MO

Posts: 27,595

Likes: 3

Received 40 Likes on 26 Posts

How old are the plugs?

Reply Like

04-26-07, 01:44 PM

Sgtblue

Urban Combat Vet

iTrader: (16)

Join Date: Oct 2003

Location: Mid-west

Posts: 12,012

Likes: 862

Received 862 Likes on 611 Posts

And were they stock heat ranges?

Reply Like

04-28-07, 12:44 PM

radiantRX-7

Senior Member

Thread Starter

iTrader: (1)

Join Date: Dec 2002

Location: Florida

Posts: 545

Likes: 3

Received 0 Likes on 0 Posts

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

Reply Like

04-28-07, 10:59 PM

cewrx7r1

Eye In The Sky

iTrader: (2)

Join Date: Feb 2001

Location: In A Disfunctional World

Posts: 7,892

Likes: 0

Received 114 Likes on 66 Posts

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.