p0430
Moderate
Dodge · Sedans & Muscle Cars
Catalyst System Efficiency Below Threshold (Bank 2)
Quick Answer
Error code P0430 on your Dodge Sedans & Muscle Cars 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
Check for engine codes related to fuel delivery
2
Test oxygen sensors for proper operation
3
Inspect catalytic converter for damage
4
Replace catalytic converter if required
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
Gaskets
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