Q: Q: O2 sensor

asked by on

What kind of problems will it cause if I'm not repairing anytime soon?

My car has 119790 miles.
My car has an automatic transmission.

The oxygen sensors are part of your emissions system and read exhaust gases to determine whether or not the appropriate amount of oxygen is present in the exhaust. Based upon this reading, this information is relayed to the car’s ECU which then makes a determination as to whether or not to add more or less fuel to the engine. When too much or too little oxygen is present, this will cause check engine light to come on. Too much oxygen may be present in the exhaust gas due to things like an exhaust leak, a vacuum leak, a faulty mass air flow sensor (causing a lean fuel condition) or faulty fuel injectors. Too little oxygen may be present in the exhaust gas may be caused by things like a clogged air filter, a failing mass air flow sensor (causing too much fuel to be introduced to the motor), bad fuel injectors or a clogged catalytic converter. When the O2 sensor is not working properly, this will cause false readings to be relayed to the computer causing inaccurate adjustments to be made to the intake and fuel system in your engine. You may also notice a very strong smell of fuel and poor fuel mileage. I would suggest having an expert from Your Mechanic come to your home to diagnose your emissions system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: O2 sensor

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

Q: Code p0037: Bank 1, Sensor 2 H02S Heater Control circuit signal had low voltage for a pre-determined period of time

Hello. If your oxygen sensor is reading low then it may be possible that it needs to be replaced. If there was a blown fuse or disconnected wire then there would be no signal at all. If the oxygen sensor...

Q: Car idling low at stop

If you have a Check Engine Light, I would start there. Any codes that are found will aid in the diagnosis of your issue. It is possible that you could have an issue with your idle air control valve. I...

Q: Does the Transmission and Differential take the same fluid on a Acura TSX?

Hello, I would not recommend to use transmission fluid for the differential. Yes, Acura did use a transmission fluid for the rear differential originally called Z1 but a new fluid (DW1) was formulated and Z1 production ceased. However the fluid...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...