Q: P0430 code. Should I replace the catalytic converter?

asked by on

P0430 how long do I have to replace catalytic converter or could it be something else causing the problem

My car has 186000 miles.
My car has an automatic transmission.

Hello and thank you for contacting YourMechanic. Check for any exhaust leaks in the exhaust system. If there is a slight ticking sound or a light to loud rumble, then there is a possible exhaust leak. Check the O2 sensors to see if they are reading properly. If the O2 sensors are not registering, then I recommend replacing the O2 sensors. If the O2 sensors are working correctly, then I recommend replacing the catalytic converter. You can drive with a bad catalytic converter, however, it is creating excessive pollution and that can be picked up by the side street pollution scanners. I suggest replacing the parts as soon as possible. If you would like to have any services done, consider YourMechanic, as these problems can be repaired at your home or office.

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. P0430 code. Should I replace the 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: Q: Leaking brake fluid

If your brake fluid is consistently going low then there is a leak. If it goes low to a point and stay there then it may be typical of a disc brake system. As disc brakes wear out the fluid...

Q: Car dies when the engine is cold but works fine after the car warms up

Hello. Your issue is very likely the idle air control valve, or related components. After continuous use for years, these valves become clogged with carbon and other build-up. The valve can be cleaned. You can use a carburetor cleaner, or...

Q: Have smoke and fuel coming out of exhaust pipe

The pressure regulator is usually located on the fuel rail and is easily accessible. But I wouldn't change it unless you've done a fuel pressure test. There are a number of other things that could be wrong that would lead...

Related articles

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...