Q: The Check Engine light is on. I know the vehicle needs a new catalytic converter.

asked by on

The Check Engine light is on. I know the vehicle needs a new catalytic converter.

If someone has already diagnosed that the catalytic converter is faulty on your vehicle and you know they are correct, that is the cause of your check engine light. Your oxygen sensors pick up more fuel in the exhaust when your catalytic converter is clogged therefore causing rich codes. Once the catalytic converter is replaced and the check engine light is reset it should not reappear unless another separate issue occurs.

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
  1. Home
  2. Questions
  3. The Check Engine light is on. I know the vehicle needs a new 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: What do the doors do if not opened when unlocked with the wireless control?

Your vehicle has a security system for the door locks, in case you unlock the vehicle but never get in it. If the doors are unlocked via the wireless remote control, but not opened within 60 seconds, then they will...

Q: Ac compressor fuse blows 2004 Ford Taurus

Hi there - from your symptoms, it sounds like your AC compressor clutch has locked up, or the clutch bearing has seized, such that the serpentine belt tries to turn the compressor whenever you start the engine. (REALLY problematic if...

Q: My Check Engine Light is on and the machine said I have an exhaust leak

She is correct. There is a lot of pressure coming from your engine; in fact, it's actually fire when the exhaust comes out at the beginning. You will need to have the exhaust manifold replaced because it's not good for...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...