Question about 2004 Kia Sedona
The cat convertor is contaminated with fuel. If the light will not go off (its always on) you have two choices: 1. install new cat(s) or Run premium fuel until light goes out. However before doing either you must first ensure the car's: air filter is new, the spark plugs are new and you put fuel injector cleaner in every tank of fuel. and you might want to replace the O2 sensor in the exhaust pipe. (fuel injectors foul up and cause spilling of fuel instead of spraying atomized fuel and if the spark plugs are fouled they ill not do complete burn of the fuel and therefore cause fuel to get into the cat converter. The O2 sensor can also cause the computer to adjust the timing to fire the plugs and cause similar issues)
Posted on Dec 26, 2014
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Posted on Jan 02, 2017
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