How to Replace the Oxygen Sensor on a Honda CRV


You can save money by replacing the oxygen sensor in your Honda CRV and avoiding a trip to the repair shop. The key is to use the correct tools for the job and to gain the know-how. Although it sounds complicated, swapping out the sensor is a step-by-step process that can be done in your driveway or garage. The purpose of the oxygen sensor is to measure the emission levels and ensure that your CRV is operating within normal limits. If your oxygen sensor is not operating properly, the "Check Engine" indicator will light up on your dashboard.

Things You'll Need

  • Oxygen sensor wrench
  • Car ramp or jack
  • Confirm that your oxygen sensor has to be replaced by taking your Honda CRV to an auto parts store that has a code machine. Technicians can hook up your CRV to their machine to get a code to confirm that your oxygen sensor is faulty. There usually is no fee for this service.

  • Purchase your oxygen sensor. The model number will depend on the year of your CRV. An auto parts store can assist you in obtaining the correct part.

  • Acquire an oxygen sensor wrench. You can rent one from a tools rental store or an auto parts store, if you don't have one or don't want to purchase one.

  • Drive your car onto auto ramps and set the parking brake, or jack it up so that you can get underneath the car to work.

  • Locate the two oxygen sensors. One is at the front and one at the back of the catalytic converter. The code that you had detected earlier indicates the faulty sensor. Or you could replace both.

  • Disconnect your negative battery cable.

  • Unscrew the bracket holding the sensors in place. This will allow access to the sensors.

  • Remove the sensor by using the oxygen sensor wrench. If the sensor is difficult to remove, you can warm up the engine by running it for a few minutes or you can spray the sensor with a lubricant.

  • Put the new sensor in place and tighten the bracket holding the sensors.

  • Reattach the negative battery cable.

  • Drive your car five to 10 miles after completing the job. This will cause the Honda's "Check Engine" light to reset.

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