P0430 - Catalyst System Efficiency Below Threshold (Bank 2) - My car is running great

[machmike]

No clue what this error could be, the car is running like a champ. Its probably close to spark plug time or something? Loose sensor? This error seems to be related to quite a few different things.

2016 LR4 I am original Owner, 75k.

I'll take any suggestions where to start.

Also pulled a U0447 - Invalid Data Received From Gateway A: missing calibration

Thanks

(this is my first check engine light on this car....probably of many more to come).

 

[Rover Range]

The cat convertor efficiency is reduced.
They are covered under the emissions warranty for 8 years, 80k miles.
Depending on your vehicle's in service date, may be covered.

 

[Waterndirt]

I’ll second what @Rover Range stated. I had the same code and took it to the dealership, they ended up replacing a bank for free.

My cat gave way after a head gasket failure. The shop that did my engine work stated it’s a common occurrence to lose a cat after antifreeze gets into the exhaust system.

Dealer may charge a diagnostic fee but you’d get that back if it’s emissions related, I believe fuel equipment is covered too under that Federal Emissions Warranty.

If you have your original user manual / service guides, it’s listed in the back somewhere.

 

[itsaguything]

… Or an injector not behaving properly.

Cheers!

 

[machmike]

The cat convertor efficiency is reduced.
They are covered under the emissions warranty for 8 years, 80k miles.
Depending on your vehicle's in service date, may be covered.

I got the car in March 2016.

This means I'm screwed?

 

[itsaguything]

Firstly, 80,000 miles or 8 years. Did you buy it in September?? Run it into the dealer and find out. My dealer looks after me.
Secondly, cats should last longer unless something is amiss. Find out the root cause OR be prepared to replace, the replacement.

Cheers

 

[machmike]

March.. it is 6 months over 8 years.

 

[itsaguything]

Run into the dealer

 

[machmike]

I'll run in on Monday

 

[M32H32IS]

Let me know if it’s actually your cat. I’m getting the same code but running 100%. Getting 20mpg highway