P0431
Warm Up Catalyst Efficiency Below Threshold Bank 2
2007-2014 Land Rover LR2 3.2L I6
Moderate SeverityPowertrainGeneric (SAE)
Description
Bank 2 warm-up catalyst efficiency is below threshold.
Symptoms
- Check Engine Light
- Failed emissions
Common Causes
- Worn catalyst
- Rich running during warmup
- O2 sensor issue
Diagnostic Steps
- Monitor catalyst
- Compare O2 signals
- Check exhaust
Repair Notes
Replace warm-up catalyst if confirmed.
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
P0431 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 P0431 mean on a 2007-2014 Land Rover LR2?
P0431 stands for "Warm Up Catalyst Efficiency Below Threshold Bank 2". Bank 2 warm-up catalyst efficiency is below threshold.
What are the symptoms of P0431 on a Land Rover LR2?
Common symptoms of P0431 include: Check Engine Light, Failed emissions.
What causes P0431 on a 2007-2014 Land Rover LR2?
Common causes of P0431 include: Worn catalyst, Rich running during warmup, O2 sensor issue.