Q: Q: Check Engine light for catalytic converter

asked by on

The Check Engine light is on in car. After getting a diagnostic check done, I was told the problem was the catalytic converter.

If you are not experiencing drivability issues, the catalytic converters may be starting to become inefficient. Catalytic converters often times are ruined by raw fuel in your exhaust system. Misfires that go unresolved are usually the cause of this. A technician, such as one from YourMechanic, will typically use a back pressure gauge to test the catalytic converter for inefficiency and replace it if necessary.

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. Q: Check Engine light for 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: About three weeks ago while driving in a storm my car went into limp mode and my check engine light came on 2006 Infiniti M35

Hi there. If those codes only came up at that time and they were cleared and have not come back then you had water intrusion into the connections on the transmission causing this. I would usually clean the connections and...

Q: Knocking sound when driving. Disasters when braking or accelerating.

If the knocking only appears when you are at cruise and becomes more frequent as you go faster, then you may have an axle inner joint or a transmission mount or engine mount issue. This may be why the noise...

Q: what could make my car have a knocking noise?

A loud knock inside the engine could be caused by a broken piston, bent rod, or any of several other possible causes. Just about any loud knock that is definitely coming from inside the engine block is not good. It...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...