p0430
Moderate
Dodge · SUVs
Catalyst System Efficiency Below Threshold (Bank 2)
Quick Answer
Error code P0430 on your Dodge SUVs means: Catalyst System Efficiency Below Threshold (Bank 2). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Confirm P0430 code with OBD2 scanner
2
Check oxygen sensors on Bank 2
3
Inspect exhaust system for leaks
4
Review fuel trim and engine performance data
5
Replace catalytic converter if faulty
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Catalytic converter
Oxygen sensors
Exhaust components
Related Error Codes