Q: oxygen sensor

asked by on August 25, 2016

I have engine light on my car dashboard. After checking with local mechanic he diagnosed there is problem with oxygen sensor. Mechanic also mentioned that after changing oxygen sensor engine light can still stay. Is he saying right? And in your opinion what would be total cost and labour for this job and do I really need to change this. I have no other problem with my car running smoothly. Thanks Regards Faisal

My car has 165000 miles.
My car has an automatic transmission.

This is correct in that sometimes the Check Engine Light will stay on. A qualified mechanic should be able to reset this after replacing the oxygen sensor. I would suggest having an expert, like one from YourMechanic, come to your home to reset or diagnose the Check Engine Light if it continues to persist.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

timing control valve

First, there are many different reasons you might get a timing over advanced code. The problem could be anything from a stretched timing chain to a failed actuator. The timing control solenoid valve is turned on and off by the...

Check Engine light on; engine revs and has reduced power

Your 2003 Envoy seems to have quite the variety of symptoms, and these could indicate a variety of problems. The smell of gas may be due to a fuel leak or may be an issue with the EVAP system. Or...

power steering fluid is spilling between cap and reservoir. Is my pump bad?

Hello, thank you for writing in. The vehicle is likely having issues with the power steering pump. The best way to decide without a doubt is to catch it in the act. You can do this by cleaning off the...

Related articles

P0194 OBD-II Trouble Code: Fuel Rail Pressure Sensor ‘A’ Circuit Intermittent/Erratic
P0194 P0194 code definition Fuel rail pressure sensor ‘A’ circuit intermittent/erratic What the P0194 code means The P0194 code is specific to diesel engines and will not likely be used in reference to gas engines. The test associated with...
P2219 OBD-II Trouble Code: NOx Sensor Heater Control Circuit Low Bank 2
P2219 code means there is an abnormal reading within the NOx sensor circuit voltage often due too faulty fuel usage or defective sensors.
P0406 OBD-II Trouble Code: Exhaust Gas Recirculation Sensor "A" Circuit High
P0406 code definition P0406 is a general ODB2 trouble code indicating a fault within the exhaust gas recirculation EGR circuit. This code...