2006 Land Rover P0430: What It Means & Is It Safe to Drive?
P0430 on the 2006 Land Rover: Catalyst System Efficiency Below Threshold (Bank 2). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe 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 on the 2006 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 2006 Land Rover, repairs for P0430 typically fall between $400 and $2400, depending on the root cause and labor rates in your area.
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