How often do you replaced your oxygen sensors?

[Siyexcalibur]

I am wondering how often should I replace the oxygen sensors. I known that as the oxygen sensors aged, fuel consumption will deteriorate. What is a good replacement interval assuming that there is no equipment available to check the oxygen sensors.

[Valtino]

I'm still using the same oxygen sensor for the past 3 years so far no problems yet till the check light comes on

[Circuit]

i wait till it died.

no breakdown no change.

 

and do cleaning.. take out use things like 3M contact cleaner for electronics or sensor cleaner to clean like maybe 50k milage interval etc....

[Siyexcalibur]

Of course, if you clean regularly at every 50K , can use for very very very long time.

This sorts of remind me of people cleaning and regapping their spark plugs in the past.

[Siyexcalibur]

Three years should not have problem, some people recommend replacing them at 160K km, just curious to know if there are anyone actually does preventive maintenance on the oxygen sensors

 

http://www.autohausaz.com/html/emissions-oxygen_sensors.html

[Route88]

BTW, how much are the price range to replace

[Valtino]

If i'm not wrong different models have different pricing.

[Sky8807]

I am wondering how often should I replace the oxygen sensors. I known that as the oxygen sensors aged, fuel consumption will deteriorate. What is a good replacement interval assuming that there is no equipment available to check the oxygen sensors.

My encounter approx 125K, problem of sensor surface. Suz wagon R+.

initial symptom, engine check light illum during start. Can be resent using dignostic but will cause more difficult starting b4 fully kaput.

[Application9999]

btw..where is the o2 sensor? at the exhaust mid area?

[Rb26dett]

mine giving me problem after 2 yrs + about 87k milleage.

initial symtom, cel on.send workshop to diagnose then have it reset and also clean the sensor contact points.till now after nearly 8k no problem.

[Siyexcalibur]

Yes,one is at the exhaust manifold, some cars have another further down the exhaust system. It looks kind of like a spark plug shaped device from outside.

[Siyexcalibur]

Got cheap ones and expensive ones, my guess is maybe about $200 each also depends on where you do it.

[Siyexcalibur]

When the Check engine light comes on, it is really high time to change. Delaying is asking for trouble.

[Siyexcalibur]

Why it is strange to have sensor fouling after so little mileage? Your car must have been heavily modified.

[Garlic]

Is this known as air/fuel sensor as well or is it another thing?

[Siyexcalibur]

No it is not the air/fuel mixture ratio sensor, it is just the oxygen sensor which senses the amount of oxygen in the exhaust.

[Imuya]

It's the same thing. But properly known as oxygen sensor.

 

Sensing the amount of oxygen left over in the exhaust will tell you the AFR.

[Watwheels]

 

The question to ask is what should I do with my car when fuel prices hit $10 per liter.