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    Always use OE NGK O2 sensors in your Jeep!

    After replacing both upstream O2 sensors —-Non-Jeep brand-my check engine light returned with the same code 00133 A mechanic told me to replace the Sensor 1 Upstream 1 with Jeep OEM parts I did and so far the check engine light is off after driving 100 miles over the weekend Always use Jeep...
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    O2 sensor issues and code P0133

    O2 Sensor Problems My check engine light came on a while ago code p0331 and I changed both upstream o2 sensors The light went off for about 2 weeks and then came on again same code P0133 Then the light went off again after a few days and now it is on again Anyone have this issue? Tks
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