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Mitsubishi Diamante Oxygen Sensor Replacement

As is always the case, the cost of the repair depends on the make, model, and year of your car.

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$90.58 $1010.5
Average Shop Price $428
RepairSmith Price $243
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This range covers an average oxygen sensor replacement. Tell us your car to get a guaranteed price from RepairSmith.

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Mitsubishi Diamante Oxygen Sensor Replacement

RepairSmith offers upfront and competitive pricing. The average cost for Mitsubishi Diamante Oxygen Sensor Replacement is $182. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you.

Car
Location
Quoted on
Price
2003 Mitsubishi Diamante
3.5L V6 LS • 139,000 miles
Huntington Beach CA 92649
May 6, 2021
$175 - $213
2000 Mitsubishi Diamante
3.5L V6 LS • 121,000 miles
Loma Linda CA 92350
May 5, 2021
$160 - $196
2003 Mitsubishi Diamante
3.5L V6 ES • 18,000 miles
Petaluma CA 94952
Apr 30, 2021
$167 - $205
2004 Mitsubishi Diamante
3.5L V6 ES • 90,000 miles
North Las Vegas NV 89032
Mar 12, 2021
$161 - $197
1998 Mitsubishi Diamante
3.5L V6 ES • 232,000 miles
Redondo Beach CA 90277
Mar 10, 2021
$149 - $183
2002 Mitsubishi Diamante
3.5L V6 • 200,000 miles
Mentone CA 92359
Jan 4, 2021
$168 - $206
2004 Mitsubishi Diamante
3.5L V6 • 183,300 miles
Menifee CA 92587
Dec 8, 2020
$160 - $196
2004 Mitsubishi Diamante
3.5L V6 • 183,300 miles
Menifee CA 92587
Dec 8, 2020
$160 - $196
2004 Mitsubishi Diamante
3.5L V6 • 183,300 miles
Menifee CA 92587
Dec 8, 2020
$160 - $196
2003 Mitsubishi Diamante
3.5L V6 LS • 100,000 miles
Palm Springs CA 92262
Dec 4, 2020
$173 - $211
Last Updated:
Sep 7, 2021 1:34 PM
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What is an Oxygen Sensor?

Would you be shocked if I said it’s a sensor to measure oxygen? Okay, but it’s a bit more than that. Cars have both upstream and downstream sensors (also known as O2 sensors). Upstream oxygen sensors are placed in front of the catalytic converter, and measure the amount of oxygen in the exhaust. The car’s computer then uses that data to determine the proper air to fuel ratio.  Downstream oxygen sensors are located behind the catalytic converter, and measure the efficiency of the converter.

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Signs of a faulty Oxygen Sensor

Poor performance

No one likes poor performance. That includes you, and it certainly includes your car. Faulty O2 sensors will feed misinformation to your car’s computer. The computer will then alter the engine in a way that leads to less power, some hesitation and jerkiness, and running rough. Which means you’ll be embarrassed the next time you try to show off at a green light.

Check engine light

Oh, the check engine warning light. That light that you pretend isn’t there when it lights up. How has that worked out for you? Try as you might, ignoring a check engine light won’t make it go away. And oxygen sensor failure is a common cause of the light illuminating.

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How urgent is an Oxygen Sensor replacement?

You’re not really in any danger driving around with a busted O2 sensor. Your car will still be safe to drive. But the performance won’t be ideal, and you may fail an emissions test. You don’t need to drop everything and run straight to a repair, but get around to it when you can.

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