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2.5L SOHC

DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)

DTC DETECTING CONDITION:
- Detected when two consecutive driving cycles with fault occur.

TROUBLE SYMPTOM:
- Engine stalls.
- Idle mixture is out of specifications.

CAUTION: After repairing or replacing the defective part, perform the Clear Memory Mode and Inspection Mode.


Wiring Diagram:




Step 1 - 3:




Step 4 - 7:




Step 8 - 11: