Skip the auto shop - Our mechanics make house calls

Q: Check Engine light says replace catalytic converter

asked by on

The Check Engine light is on, and the code says to replace catalytic converter.

A: It would be helpful to know the exact code ...

It would be helpful to know the exact code in this case. The Check Engine Light themselves do not tell us to replace components, they point us to a possible cause of a malfunction. If the code is for catalytic efficiency, which would cause a flashing Check Engine Light, the vehicle should not be driven. A failed catalytic converter can cause engine damage if continued driving. A qualified technician, such as one from YourMechanic will be able to confirm the cause Check Engine Light and perform an exhaust flow test if needed. They will also be able to replace the catalytic converter if this is verified to be faulty.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Will a bad O2 sensor damage my car's computer?

The engine control unit (ECU) is a possible cause of the O2 sensor fault codes but not the most likely. Your vehicle is equipped with 4 O2 sensors. Bank 1 is the driver's side. Bank 2 is the passenger side....

Q: Lost power driving in traffic

This model year F-150 engine has had a few concerns that relate to the problem you are having. The first step in diagnosis is to verify if problem only happens during wet, damp or humid conditions. YourMechanic will then need...

Q: my car engine doesnt stay on unless im pressing the gas

Hi there: If a different mechanic said that the engine was "dirty" and to use premium gasoline to repair this issue, then it's likely that the fuel system components including the mass air flow sensor, EGR valve, fuel injectors and...

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...