oxygen sensors

Discussion in 'SN95 4.6L Mustang' started by jlds91389, Sep 2, 2009.

  1. jlds91389 New Member

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    do the front o2s play a huge role in the performance of the car? i know this might sound like a noob question but i dont want to go and waste my money.the reason i need to change them is when i put the o/r h on the both got twisted some how and pulled one of the wires loose from the sensor.
  2. mustang_montana New Member

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    yes you need the front ones, get the motorcraft replacement not the bosche ones. the motorcraft ones work best out of all the others, they dont cost a ton either.
  3. fast97gt Active Member

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    Ya pretty much they are a huge part of the performance of the car, f buy bosch ones there just as good but dont even think about universal if they offer them at parts house
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  4. mustang_montana New Member

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    the motorcraft are narrowband, the bosche aren't. people have had problems in the past with the bosche, myself included. its your call, i think the denso ones are pretty much identical to motorcrafts.
  5. jlds91389 New Member

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    thanks for the replies. will my mpg go down if they are bad?
  6. fast97gt Active Member

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