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Frank 1/19/2013
1984 Porsche 944 Base 4 Cyl 2.5L - Engine
What is the location of the oxygen sensor?
I want to replace the oxygen sensor!
2 Answers
  • Bill
    Bill 1/19/2013
    On exhaust manifold, looks a bit like a spark plug with a wire harness. Also on behind catalytic convertor under vehicle. Buy an OEM from For ease of replacement
  • Walker Pro
    Walker Pro 5/7/2013
    Hello Frank,

    The only information I can give you, is that there is only one sensor on this vehicle but 2 options a calif-ESV(3 wire sensor) and a Non Calif-esv (1 wire sensor). In both cases ours is a direct fit oem replacement.

    If you have any further questions or concerns please contact us and we will be happy to help.

    Walker Pro (

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