engine light still on after replacing oxygen sensor

What code did you pull and which oxygen sensor you replace?

Is was p0036.

Oxygen sensor bank 1 or 2 sensor.

I am still not sure which oxygen sensor you replaced? I attached an image to show you the correct location of the sensor. Bank 1 sensor 2 is the one on the catalytic converter. Depending on your emissions rating which you will find under the hood on the label the pin configurations are different.

On pins number three and four measure the resistance for the heater circuit. If it is not within spec replace the sensor. And as stated earlier depends on your emissions rating, pins number three or number number will be the power supply. With the key on engine off you should see battery voltage to one of those pins. Let us know how your test goes and if you had to replace the oxygen sensor on the catalytic converter.

What do you mean off you should see battery voltage to one of those pins. Let us know how your test?

Depending on which connector you have based on the diagram back probe pin number three or number four with your voltmeter and have someone turn the key on and verify there is at least 12 volts.

Oh okay, but this morning I drove my car so check engine light when off by itself. so I hope it has worked.

It sounds like you never cleared the code in the computer after you replaced the o2 sensor?

Yeah I did.

Okay, so see if the code comes back now that the light is off. What was the location of the sensor you replaced?

Is was bottom of my car oxygen sensor bank 1 or 2 sensor because that is what people keep telling me so I changed it.

So the one by your catalytic converter?

Also, what size engine do you have?

Catalytic converter yeah. My size engine is 2.4L.

If it was by the catalytic converter it is the correct one you changed.

Yes.

Please let us know happens so it will help others.

Best, Ken

Okay thanks. I will.

Hey, I have another questions I when to pass my emissions test well I did not pass they told I have drive put like 50or 100 mill on. But I do not know what to do, no light light engine on the paper said I failed. Hey, how are you have that problem too I want to know what it is. I can get done to fix my problem koer fail emissions test.

You see then pictures I send for you to see.

Hey JEFF,

Can you please start a new question.

Best, Ken

After you cleared your codes after you replaced your sensor. You have to drive it a a certain amount of miles. Your ECM (electronic control module) has to basically do a reset and while your driving it will retest and check to makes sure everything is okay with your car. With that being said. If you clear your codes with out driving for long enough time to give your car a chance to reset and you take it to get it inspected, the system will show as though your codes are still showing which will cause the fail. Just drive it for a while. Fifty or sixty miles depending on your car and take it to AutoZone or O'Riellys and have them check it to make sure no codes show before you get it inspected. Hoped that helped and explained. I know it is an old post but there you go anyways. Good luck.

It sounds like he replaced the sensor but failed because the monitors were incomplete which would be normal if there was an O2 code as it will not run all of the monitors if a code for a monitored system is set (even ones that do not light the CEL can block the monitor tests).

I have problem with oxygen sensor code p0130. I have replaced o2 sensor but after 12 km check engine light comes again. Please help me. Did p0130 code can come for air sensor also or anything else.

I have seen this problem being the computer being bad. Here is the location you will need to get the new one programmed at a shop. It should cost about $130.00.

Check out the diagrams (below). Please run some tests and get back to us.

Cheers, Ken

As I said certain time I cleared the code after driving the car but it comes back. My car vibrating when engine gets cool and after few minutes it takse charge and go for a drive. The pick of car is also not like that as it should be.
But fuel consumption is not very low where as I can go on it on 120 speed.
Cloud you please tell can it is faulty due to air sensor? If air sensor where not working code will be appear same p0130 or it will be change?
Thanks

P0130 does not cover just the O2 sensor. It covers the entire circuit for the sensor. 99% of the time the issue is not the sensor but either a bad connector or bad wiring between the sensor and the computer. To repair it means you need to look at all the wiring harness for the sensor, looking for broken wires (they will corrode of inside the insulation or inside the crimped areas on connectors) plus the wires can get close to things like the exhaust pipes or manifold and be melted through or where they are attached to a bracket or bend around a sharp edge. Happens a lot.

Wires have been checked along with voltage . My car does vibration when I start it earlier in the morning or after engine cool down maybe it is happening due to air filter switch may be switch of air filter is not working so it may not allow to o2 sensor to do proper work or my car pick up is weak due to it .

A clogged air filter is not good can you get a new one and retest? That is the first thing is this guide.

https://www.2carpros.com/articles/engine-has-low-power-output

Please let us know what happens.

Cheers, Ken

Today I replaced the air sensor and I driven the car after changing air sensor forty km without clearing the engine check light. Now after that I cleared engine check light and drive ten km and came home. Now I do not know it will come again or not tomorrow.
Hope for a good!

No improvement after done all above. Still check light is on.

Yes, it sounds like the PCM is bad.

How can I set PCM?

A shop will need to do it should cost about $130.00.

Can throttle make problem of vibration of car?