Oxygen Sensor Replacement Estimate for Mazda 929

Mazda 929 Oxygen Sensor Replacement costs $159 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$142 to $195
Labor: $70 -$80
Parts: $72 -$115
Average Dealer price
$237 to 323
Average Shop price
$173 to 227
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CarServiceYourMechanic PriceShop/Dealer Price
1991 Mazda 929V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$164.73Shop/Dealer Price$202.93 - $284.87
1990 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$192.21Shop/Dealer Price$237.35 - $339.94
1991 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$192.21Shop/Dealer Price$237.30 - $339.86
1993 Mazda 929V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$163.86Shop/Dealer Price$201.88 - $283.20
1993 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$147.81Shop/Dealer Price$181.79 - $251.05
1995 Mazda 929V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$165.63Shop/Dealer Price$204.05 - $286.65
1995 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$148.17Shop/Dealer Price$182.32 - $251.90
1992 Mazda 929V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$146.37Shop/Dealer Price$180.05 - $248.27
Show example Mazda 929 Oxygen Sensor Replacement prices

Parts required for a Mazda 929 Oxygen Sensor Replacement

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Dan
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Grzegorz
36 years of experience
Gregory was incredibly knowledgeable on the problem, went above and beyond my expectations and finished way sooner than I expected.
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Eugenio
21 years of experience
Eugenio was very helpful and personable in helping me with my issue. It was a minor issue but he checked other components and verified that everything was running smoothly. Very professional and knowledgeable.
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Robert
16 years of experience
Robert was great! He came out to my car same day and found/fixed the problem right away! Highly recommend.
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All about Oxygen Sensor Replacement

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.

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