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Oxygen Sensor

Tiny
DIANNECNY
  • MEMBER
  • DODGE INTREPID
1996 Intrepid - 130,000 mi. "Check Engine" light comes on and off -- was told I needed an Oxygen Sensor - runs rough, but much better traveling over 50 mph. Can you please tell me exactly what this part is and an approximate cost to replace? Thanks.
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Tuesday, May 1st, 2007 AT 7:58 AM

1 Reply

Tiny
BACKYARDMECHANIC
  • MECHANIC
  • 337 POSTS
The O2 sensor monitors the oxygen level of the exhaust from the motor. The cars computer recieves a voltage signal from the O2 sensor and uses this signal along with other signals it recieves to adjust the air/fuel mixture to current conditions. If the O2 sensor detects a large or small presents of oxygen in the exhaust the computer will make the necessary adjustments. The price for the part (no labor) varys and starts aprox $50 and up.
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Wednesday, May 2nd, 2007 AT 11:29 AM

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