Hi, Truck came in with Check Engine light on and misfire felt. Had 3 codes Random misfire, and two O2 sensor codes. If I remember it was Bank 1 sensor 1 and Bank 2 sensor 1. Found a vacuum leak near IAC. Spark plugs were O.E. and due at 60k. Replaced with Moto...

FIX posted 3/20/2003

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