Saturn L200 Oxygen Sensor Replacement at your home or office.

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$149.10 - $201.76

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Oxygen Sensor Replacement Estimate for Saturn L200

Saturn L200 Oxygen Sensor Replacement costs $187 on average.

CarServiceEstimateShop/Dealer Price
2001 Saturn L200L4-2.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$223.21Shop/Dealer Price$269.55 - $382.05
2003 Saturn L200L4-2.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$308.47Shop/Dealer Price$376.18 - $552.67
2002 Saturn L200L4-2.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$313.47Shop/Dealer Price$380.46 - $556.41
2001 Saturn L200L4-2.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$279.73Shop/Dealer Price$341.94 - $498.13
2003 Saturn L200L4-2.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$308.53Shop/Dealer Price$375.03 - $550.65
2002 Saturn L200L4-2.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$313.53Shop/Dealer Price$379.82 - $555.28
Show example Saturn L200 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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Meet some of our expert Saturn mechanics

Real customer reviews from Saturn owners like you.

Excellent Rating


YourMechanic Saturn L200 Service

Average Rating

4.7/5

Number of Reviews

59

Rating Summary
52
3
1
1
2
52
3
1
1
2

Guebre

13 years of experience
35 reviews
Guebre
13 years of experience
Saturn L200 - Brake System Flush - Rockville, Maryland
I am very happy with Guebre. He worked professionally and carefully. I was lucky to have him as my mechanic, and if anybody needs service, I definitely recommend him.

Tyler

25 years of experience
178 reviews
Tyler
25 years of experience
Saturn L200 - Serpentine/Drive Belt - Pearland, Texas
Tyler did a great job repairing our vehicle for the first time. We will definitely be using his services again.

Rigoberto

9 years of experience
711 reviews
Rigoberto
9 years of experience
Saturn L200 - Spark Plugs - Wheeling, Illinois
This was wonderful no waiting for people to move the car or write a ticket. I was in my living room. I test Rigoberto completely with my car

Richard

33 years of experience
9 reviews
Richard
33 years of experience
Saturn L200 - Axle / CV Shaft Assembly Replacement (Driver Side Front, Passenger Side Front) - Jacksonville Beach, Florida
Rich was Puntual and very Professional. We had a minor obstacle but he went above and beyond and got the job done ahead of schedule. I highly recommend him to anyone. My service today was professional, convenient, timely and affordable.

Excellent Rating


YourMechanic Saturn L200 Service

Average Rating

4.7/5

Number of Reviews

59

Rating Summary
52
3
1
1
2
52
3
1
1
2
Red-stars EXCELLENT RATING ON
Number of Saturn L200 services completed
649+
services done by our mechanics
TOTAL NUMBER OF EXPERT Saturn MECHANICS
500+
experts on our platform

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