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Getting code P0133 on a 98 mountaineer. All Cats and Oxygen sensors have been changed since we got codes P0133 P0420 for both left and right banks. Should we replace manifolds next or EGR sensor?
Wiki User
∙ 17y ago
P0133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) does not necessarily mean the O2 sensor was bad, and for sure does not mean the catalatic conveter was bad. Stop throwing parts at this problem and take it to a professional, before you replace any more unnessary parts. You would be money ahead if you had done that is the first place.
Wiki User
∙ 17y ago
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