Skip the auto shop - Our mechanics make house calls

Q: My engine light is on and auto zone code says O2 sensor or catalytic converter.

asked by on

My engine light is on and auto zone code says oxygen sensor or catalytic convertor. When I drive it the car feel like its jumping or slipping transmission. Accelerates funny. Could the sensor or converter make it feel that way?

My car has 125000 miles.
My car has an automatic transmission.

If you have codes to the O2 sensors does not always mean you have bad catalytic converters. You describe different problems that can be the converters and even a transmission shift problems. I would recommend having a mechanic like one from YourMechanic diagnose the problems you are having since both repairs could be very expensive if the problem turns out to be the catalyst and the transmission. You may have a minor problem that is causing all the problems like a vacuum leak at one of the vacuum hoses to the crankcase ventilation system. Only a thorough diagnostics from a qualified mechanic can isolate the problems.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. My engine light is on and auto zone code says O2 sensor or catalytic converter.

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: Exhaust

There is always a chance if it will work as a replacement for the factory part anytime you use an aftermarket part. The exhaust catalyst on any vehicle is designed to flow a certain amount of exhaust at the same...

Q: Why is my car accelerating by itself?

This vehicle engine has a manual throttle cable and cannot accelerate by itself. You may have a faulty idle air control valve that can cause a high idle but is limited to only about 1250 rpm. I would recommend having...

Q: My Car Jerks and Stalls after driving it for an hour

It's hard to say, but it sounds like you have a problem in the transmission control. It might be related to an engine speed signal, which would explain the tachometer behavior, but I really can't say from where I am....

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
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...