Q: My Check Engine Light is on - code P0430

asked by on November 11, 2016

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?
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

How difficult is it to replace the radiator in a 07 X-Type Jag?

In order to verify the leak you will need to have the cooling system pressure tested to see if it is just a hose or the radiator is leaking. This way you do not replace good parts. You may have...

Mercedes Misfire codes Po300 301 302 303

Ruling out ignition or fuel system problems is a lot of work. I usually do it by substituting components from non working cylinders to working cylinders to see if the misfire moves. Misfires on one side of the engine like...

I have a 06 Infiniti M45. The service engine light came on. Got the codes of p0420 and p0430. Wondering if I need to replace both O2 sensors.

Hi there. When the codes P0420 and P0430 come up, usually the catalytic converter has failed, but before you determine if you need to replace the catalytic converter, consider checking the following: A damaged or failed oxygen sensor on...

Related articles

P0414 OBD-II Trouble Code: Secondary Air Injection System Switching Valve A Circuit Shorted
P0414 code means that there is an issue with the secondary air system due to a failed air pump, a short in the wiring harness, or a faulty hose.
P0782 OBD-II Trouble Code: 2-3 Shift Malfunction
P0782 code means the PCM has detected a problem with the 2-3 shift function often due too faulty solenoids or transmission failure.
P0260 OBD-II Trouble Code: Injection Pump Fuel Metering Control “B” Intermittent (Cam/Rotor/Injector)
P0260 P0260 code definition Injection Pump Fuel Metering Control “B” Intermittent (Cam/Rotor/Injector) What the P0260 code means P0260 is an OBD-II generic code that the injection pump fuel metering control valve circuit has intermittent current flow when the engine control...