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2000
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Civic GX, Automatic, S4RA
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Emission Control System (GX)
Emission Control System (GX)
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System Description
Tailpipe Emission
Inspection
Warm-up Three way Catalytic Converter (WU-TWC)/Three Way Catalytic Converter (TWC)
Notes
Description
Notes
DTC P0420: Catalyst system efficiency below threshold
Description
Possible Cause
Exhaust Gas Recirculation (EGR) System
Description
Notes
DTC P0401: Insufficient flow in the Exhaust Gas Recirculation (EGR) system
Description
Possible Causes
DTC P1491: A malfunction in the Exhaust Gas Recirculation (EGR) system
DTC P1498: A high voltage problem in the Exhaust Gas Recirculation (EGR) valve lift sensor circuit