What does code P0430 mean on a Land Rover and is it safe to drive?
P0430: Catalyst System Efficiency Below Threshold (Bank 2). Here's what it means on your Land Rover, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
Same as P0420 but for bank 2. The catalytic converter on bank 2 is not operating efficiently.
Common causes for your Land Rover
- Failed catalytic converter (bank 2)
- Faulty O2 sensor(s)
- Exhaust leak
Symptoms
- Check Engine Light
- May fail emissions
Typical fixes
- Replace bank 2 catalytic converter
- Replace oxygen sensors
- Repair exhaust leaks
Repair cost range
For a Land Rover, repairs for P0430 often fall between $400 and $2400, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Land Rover
Land Rover P0430 bank 2 catalyst on V6 and V8 engines—test both downstream O2 sensors first. On 5.0L AJ V8, P0420 and P0430 often appear together; both bank converters typically need replacement simultaneously on high-mileage examples.
Most commonly affected models
Range Rover 3.0L V6 2013–2020Range Rover Sport 5.0L V8 2010–2020Discovery 3.0L 2017–2023