P0430
Catalyst Efficiency Below Threshold (Bank 2)
System: Emissions
Severity: medium
What does P0430 mean?
The DTC P0430 (Catalyst Efficiency Below Threshold (Bank 2)) is a fault code stored by the ECU when it detects a cat efficiency low B2 condition in the emissions subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P0430
- Dead cat (bank 2)
- O2 sensor failure
How to fix P0430
Same as P0420 for bank 2.
Tuning approach with DaVinci Deluxe Cloud Edition
For P0430, DaVinci Deluxe Cloud Edition offers the following ECU map adjustments and software solutions:
- Cat monitor OFF (bank 2)
Need to fix P0430 on your ECU?
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