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.

A: Hi there. If you are getting this code alon...

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

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: Have hole intop plastic radiator how can i mend till i can get a new radiator

There is a compound called JB Weld that might work to fix a small hole in a radiator temporarily. This compound has two parts a black and a grey. When the two are mixed together, this creates the compound. Once...

Q: Everything turns on, but when I turn my key, the car won't turn on

Hi there. There are a few things that instantly come to mind that could be causing your starting issues. If you can activate all of your accessories but nothing happens when you turn the key forward, the cause is most...

Q: Check Engine Light P0430

Hi there. There may be two possibilities here for the P0430 code. The fact that the new bolts were installed can cause the computer to read differently so it may just need to adapt and reset. It is also possible...

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 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 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...