p0430
Moderate
Maserati · Sedans & Sports Cars
Catalyst System Efficiency Below Threshold (Bank 2)
Quick Answer
Error code P0430 on your Maserati Sedans & Sports 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
Use OBD-II scanner to check related codes
2
Visually inspect catalytic converter condition
3
Test oxygen sensor signals
4
Check for exhaust leaks and damage
5
Evaluate fuel system pressure
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 assembly
Oxygen sensors
Exhaust gasket
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