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+--- Thread: No Feedback Given HONDA DTC P0420 OFF (/showthread.php?tid=87473)
HONDA DTC P0420 OFF - haiyang - 10-01-2024
DTC P0420
Who can help?
RE: HONDA DTC P0420 OFF - Miata - 12-01-2024
Only full decat. You can check it. Rear O2 parameters will be disappear from OBD protocol