Skip the auto shop - Our mechanics make house calls

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.

A: Hello and thank you for contacting YourMech...

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?

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!

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: Getting Engine light code P0430

The definition for the code P0430 is a problem with the catalyst or the sensors that keep track of its operation. An experienced technician will, such as one from YourMechanic, be able to identify the problem component. In many cases,...

Q: my nissan xterra 2006 4.0l v6 automatic transmission isn't shifting from first. No codes are showing on the computer

Fault codes may not be present if there is a hydraulic fault in the transmission. First thing to check is the transmission fluid level and condition. Low/poor fluid condition can keep the transmission from shifting properly or shift at all....

Q: How do you correctly install a child car seat in the front?

First and foremost, never put your child in the front passenger seat of your Altima unless there is no other option. Children under the age of 13 should be in the back for the best safety. However, if you absolutely...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...