Question about Chevrolet Prizm

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Where is the primary o2 sensor on a 1998 Chev Prizm?

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  • kddavis1975 Apr 30, 2010

    But when I replaced that sensor, the vehicle started to sputter ond hesitate. I put back in the supposed bad on and everything was fine again. Please enlighten me.

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The primary O2 is located in the exhaust manifold, before the catalytic conveter and looks like this;

Where is the primary o2 - b1e170d.jpg If I remember correctly, it is only reachable from under the vehicle. A quick search of the exhaust system will tell if you can remove from the top or bottom.

Posted on Apr 30, 2010

  • GetMeOttaHere Apr 30, 2010

    Your right, that is odd....Was the old o2 the same size and shape as the new one? I'm guessing yes, but my next question is, why are we replacing the o2 sensor?

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