In some instances sensor 2 can be pre catalytic thus making sensor 3 post catalytic.
O2 sensor part number cross reference.
2013 ngk ntk oxygen sensor catalog.
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A gm original equipment oxygen o2 sensor is a gm recommended replacement for your vehicle s original component and is a feedback sensor on your vehicle s exhaust system.
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Ac delco denso 213 1481 234 4620 213 1482 234 4220 213 1482 234 4094 213 1482 234 4621 213 1483 234 4622 213 1483 234 4064 213 1483 234 4137 213 1483 234 4624 213 1483 234 4260 213 1483 234 4261 213 1483 234 9051.
One of the main symptoms of a faulty oxygen sensor symptom is a 15 decrease in mileage and that can really add up in your cost at the gas pump.
Life expectancy of an oxygen sensor 30 000 to 50 000 miles is typical.
This sensor measures the proportion of oxygen in the exhaust gases.
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The oxygen sensor cross references are for general reference only.
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553 115 sniper efi 3 5 lcd handheld 558 490 7 pin main sniper efi harness 558 491 10 pin sniper efi harness 556 150 sniper efi coil driver 543 105 sniper efi idle air control motor iac 12 878 sniper efi built in fuel pressure regulator sniper efi optional accessories.
Sensor 1 will be the pre catalytic position and sensor 2 would typically be the post catalytic position.
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If you think your oxygen sensor is malfunctioning there are a few factors to look into.
Wideband air fuel sensors perform the same function as a regular o2 sensor but they precisely measure the amount oxygen in the exhaust rather than just switching between rich too much fuel not enough oxygen and lean too much oxygen not enough fuel.
An oxygen sensor can malfunction anywhere from 30 000 to 100 000 miles depending on type and vehicle.
