Skip the auto shop - Our mechanics make house calls

Q: Check Engine Light on.

asked by on

My Check Engine Light came on, and the car began to drive differently while shaking. Think it could be the 02 sensor.

It sounds like you have a bad misfire. While a faulty O2 sensor could be the cause, it is not the most likely. A misfire can be caused by anything that prevents the air/fuel mixture from igniting properly inside the combustion chamber. This could be anything from worn spark plugs, to an engine mechanical problem. The first thing to do is to retrieve the stored diagnostic trouble code (DTC). This will provide a starting point for the diagnostic procedure. I suggest you have a trained professional with dedicated test equipment find the cause of your Accord’s Check Engine Light, and recommend the best path to repair. The team at YourMechanic is an excellent option.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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. Check Engine Light on.

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: I own a 1991 Honda Accord LX and the radiator fan won't turn off even when I turn the car off. It will stay on until battery dies.

Hi there. It's possible that one or two different issues are causing the cooling fan to not function correctly. The first would be that the cooling fan motor is damaged and needs to be replaced, while the other would be...

Q: Can I Look Up What Trouble Codes Mean?

When your Check Engine Light comes on or flashes on the dash for you it is indicating there is a problem in one of the vehicle systems and has set a trouble code stored in one of the modules’ memory....

Q: No fuel in the schrader valvule

Hello. I would recommend looking up a wiring diagram for the fuel system to determine where all the connectors are. Everywhere that a connection exists is a spot where the system can easily be tested for lost power. When you...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...