1995 Jeep Wrangler O2 Sensor been replaces 2x in one week

Asked by GSherrill Nov 26, 2012 at 02:27 PM about the 1995 Jeep Wrangler

Question type: Maintenance & Repair

1995 Jeep Wrangler "check engine light" comes on due to O2 sensor.  I have replaced the sensor twice in one week.  After driving 20 miles, "check engine light comes back on and sensor is not working.  Is there a short in the system or what is causing the O2 sensor to fail for frequently?

2 Answers
19,835

thejeepdoctor answered 10 years ago

disconnect the connector at pcm. clean terms w/ brake cleaner and compressed air. put dielectric grease back into connector pin holes. and reassm. The code is usually ...o2 sensor shorted to voltage. Was this the code?

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