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go under the car ck just below the engine follow the exaust , there is the O@2 sensor connected into the exaust ,unplug it and use a 15/16 box wrench to take it off ,sometimes you have to heat it up with a torch but very carful not to start a fire with it , just heat up the whole are wher it mounts into the pipe since you are changing it anyhow you do not have to worry about ruining it , unbolt it and wala , put the new on in .do not drop it or bang it around , tighten it not to tight snug , and plug it back in and you are done , cost about $55 bucks at pep boys , they are all pretty much standard , the only thisn that is differant is the plug end .
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