Catalyst System Efficiency Below Threshold Bank 2
2007-2014 Land Rover LR2 3.2L I6
Description
The Bank 2 catalytic converter is not performing efficiently. Same as P0420 but for Bank 2.
Symptoms
- Check Engine Light
- Failed emissions test
- Possible sulfur smell
Common Causes
- Worn catalytic converter
- Exhaust leak near downstream O2
- Faulty O2 sensor Bank 2
- Misfire damage to catalyst
- Oil contamination
Diagnostic Steps
- Compare upstream/downstream O2 waveforms Bank 2
- Check for exhaust leaks
- Test downstream O2 sensor Bank 2
- Check for misfire codes
- Inspect for oil consumption
Repair Notes
Same approach as P0420 but for Bank 2. Replace catalyst if confirmed failed.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0430 on Other Vehicles
Land Rover Defender 110
2020-2024 3.0L I6 Mild Hybrid
Land Rover Defender 90
2020-2024 3.0L I6 Mild Hybrid
Land Rover Defender V8
2022-2024 5.0L V8 Supercharged
Land Rover Discovery
1994-2004 4.0L V8
Land Rover Discovery
2017-2024 3.0L V6 Supercharged
Land Rover Discovery Sport
2015-2024 2.0L I4 Turbo
Land Rover Freelander
1997-2006 2.5L V6
Land Rover LR3
2005-2009 4.4L V8
Common Questions
What does code P0430 mean on a 2007-2014 Land Rover LR2?
P0430 stands for "Catalyst System Efficiency Below Threshold Bank 2". The Bank 2 catalytic converter is not performing efficiently. Same as P0420 but for Bank 2.
What are the symptoms of P0430 on a Land Rover LR2?
Common symptoms of P0430 include: Check Engine Light, Failed emissions test, Possible sulfur smell.
What causes P0430 on a 2007-2014 Land Rover LR2?
Common causes of P0430 include: Worn catalytic converter, Exhaust leak near downstream O2, Faulty O2 sensor Bank 2, Misfire damage to catalyst, Oil contamination.