Nissan NX Oxygen Sensor Replacement at your home or office.

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Oxygen Sensor Replacement Estimate for Nissan NX

Nissan NX Oxygen Sensor Replacement costs $248 on average.

CarServiceEstimateShop/Dealer Price
1993 Nissan NXL4-2.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$511.91Shop/Dealer Price$627.29 - $945.53
1991 Nissan NXL4-1.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$606.19Shop/Dealer Price$750.16 - $1154.12
1991 Nissan NXL4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$297.55Shop/Dealer Price$364.36 - $536.84
1991 Nissan NXL4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$178.95Shop/Dealer Price$216.09 - $299.60
1993 Nissan NXL4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$297.55Shop/Dealer Price$364.37 - $536.87
1992 Nissan NXL4-1.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$606.19Shop/Dealer Price$750.16 - $1154.12
1993 Nissan NXL4-1.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$611.19Shop/Dealer Price$755.02 - $1158.88
1992 Nissan NXL4-2.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$496.91Shop/Dealer Price$612.54 - $930.98
Show example Nissan NX Oxygen Sensor Replacement prices

Oxygen Sensor Replacement Service

What is the Oxygen Sensor all about?

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor.

Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor.

If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor-MATROX-1

When replacing the oxygen sensor remember:

  • Many oxygen sensors are damaged by leaking oil or coolant. If that is the case, the cause of that leak needs to be identified and repaired, or else the replacement oxygen sensor will be damaged as well.
  • New vehicles require specific oxygen sensors, and not the universal sensors that were common prior to 1996.

How it's done:

  • Scan the computer in the car for codes.
  • Inspect for vacuum leaks and holes in the exhaust system.
  • Remove and replace the oxygen sensor if it is bad.
  • Check electrical connections.
  • Check for proper operation of oxygen sensors.
  • Clear diagnostic codes.
  • Test drive car.

Our recommendation:

Keep up with the tune-ups. If check engine light is on, don't drive the car too long without getting it inspected. If check engine light is flashing, pull over and get the car towed to avoid costly repairs. Ask the mechanic to inspect the vacuum hoses and leaks in the exhaust system. If the vacuum hose or exhaust system is leaking, it will display an oxygen sensor fault code. Replacing an oxygen sensor may not fix the problem.

What common symptoms indicate you may need to replace the Oxygen Sensor?

  • Check Engine light is on.
  • Car is getting poor gas mileage.
  • Emission test fails.

How important is replacing the oxygen sensor?

Your vehicle has multiple oxygen sensors, and they all help the car run optimally. The front sensors measure how much oxygen is in the exhaust stream to measure how rich or lean the gases leaving the gas chamber are. The rear sensors measure the oxygen content of the gases as they leave the catalytic converter. The oxygen sensors then relay this information to your vehicle’s electronic control unit, so that it can adjust as necessary. Because cars depend on an ideal fuel-to-air ratio to function optimally, the oxygen sensors are leaned on for engine performance. When your oxygen sensors fail your car will run less smoothly, get worse mileage, and have worse emissions.

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Rating Summary
87
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Joshua

27 years of experience
709 reviews
Joshua
27 years of experience
Nissan NX L4-2.0L - My car will not shift from reverse to first gear. My gears are stuck. (Inspection) - Pinole, California
Joshua was professional. Came a few minutes early and introduced himself. Very helpful and gave me a great idea as to what was going on with my car. I'm very pleased with the results. Thanks again. I will be using using your services in the future. :)

Robert

20 years of experience
1028 reviews
Robert
20 years of experience
Nissan Pathfinder V6-3.3L - Oxygen Sensor Replacement (Front/Upper/Upstream, Rear/Lower/Downstream) - Denver, Colorado
Robert did a great job & I would not hesitate to use him again for car repairs. It was very convenient to schedule & much quicker than the time it used to take my old repair shop to repair my car.

Breck

20 years of experience
681 reviews
Breck
20 years of experience
Nissan Maxima V6-3.5L - Oxygen Sensor Replacement (Front/Upper/Upstream) - Houston, Texas
Breck was great. Service was quick and

Martin

29 years of experience
166 reviews
Martin
29 years of experience
Nissan Quest V6-3.5L - Oxygen Sensor Replacement (Front/Upper/Upstream) - Antioch, Tennessee
Martin was very courteous and friendly. He seemed very honest and knowledgeable as well. The request for quotes that he put in to management came back outrageously high...as a matter of fact the oil pan seal replacement quote was over 3 times higher than 2 other quotes. My advise is to get several quotes and shop around for service. These guys may be convenient but you'll pay 2 to 3 times what the actual service would normally go for.

Excellent Rating

(95)

Rating Summary
87
3
1
0
4
87
3
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4
Number of Nissan Oxygen Sensor Replacement services completed
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