Skip the auto shop - Our mechanics make house calls

Q: My Check Engine Light is on - code P0430

asked by on

Hi Jose My engine light came on a couple weeks ago. The catalyst system efficiency is bellow threshhold in bank 2 according to a code reader. I know nothing about cars. I really don't want to get jipped by anyone, since I am a teenage girl. My car has seemed to have a lack of power, and I know that is one of the symptoms for a p0430 OBD. My engine light is not flashing, but it is constantly on. Also, my gas cap is not loose. Can you give me an estimate or a maximum cost of what it could be? I appreciate your help.

-Becca

My car has 167000 miles.
My car has an automatic transmission.

Hi there. If you are getting this code along with a loss of power, it usually means that the catalytic converter is failing. When it fails internally it begins to clog the exhaust which will cause the lack of power.

This will also cause the Check Engine Light to come on. Prior to changing the converter, I usually test the converter by doing a back pressure test just to make sure that it is not a sensor issue. If you are going to have this catalytic converter problem fixed, I recommend having a certified mechanic, such as on from YourMechanic, come to your location to determine why the Check Engine Light is on and replace your catalytic converter if needed.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: My ESP & engine light is on I also has no acceleration. I left the car in the on position overnight. I got a jump, still same.

Hi there. It's quite possible that the engine jump start may have triggered an error code or LIMP MODE to activate. In some cases, a jump may cause a situation where the relay or ignition system is overloaded; and as...

Q: I have a 2007 Infiniti G35 sedan, when pressing the pedal softly I get a slight delay in acceleration, and sometimes a small jerk

Hi there. Typically when an engine "bogs down", it is caused by a fuel or air restriction issue. Common components that can cause this are mass air flow sensors, MAP sensor, EGR valve, fuel injectors being dirty or clogged or...

Q: Will not accelarate over 20mph and has a P0430 code

Hello and thank you for contacting Your Mechanic. The code P0430 means that the catalyst system efficiency is below threshold on bank 2. This is in relation to the catalytic converter not functioning correctly, but this code will not make...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.