95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

Spark Plug failure?

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Nov 5, 2007 | 03:32 AM

#1

Nate08

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Joined: Jul 2007

Posts: 644

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From: Bristol, TN

Spark Plug failure?

Is it possible for 1 spark plug to fail and the CEL not be on? This past tank, I filled my tires to 38PSI, and I got 13.9 MPG. I dont get it.

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Old

Nov 5, 2007 | 05:13 AM

#2

boraxman

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Joined: May 2004

Posts: 197

Likes: 2

From: So. Cal.

If your having a plug fail believe me you will feel it in the way your motor runs.

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