P0430Średni
Wydajność katalizatora poniżej progu — bank 2
Układ napędowy
Sprawdź szczegóły →P0420
ŚredniCatalyst System Efficiency Below Threshold — Bank 1
OBD-II (EN): Catalyst System Efficiency Below Threshold (Bank 1)
Code P0420 — Catalyst System Efficiency Below Threshold — Bank 1. Symptoms: check engine light. Possible cause: worn catalytic converter. Professional diagnosis recommended.
Symptoms
Check engine light, possible power loss, increased emissions
Possible causes
Worn catalytic converter, damaged rear oxygen sensor, exhaust leak before/after the catalytic converter
Affected systems
Related codes
Suggested Hybspec services
Based on the systems affected by this code, we will most likely start with:
Tags and synonyms
Does code P0420 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.