Land Rover P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Land Rover Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Land Rover definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according…

Kia P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Kia Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Kia definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

Jeep P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Jeep Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Jeep definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

Jaguar P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Jaguar Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Jaguar definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

Isuzu P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Isuzu Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Isuzu definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

Infiniti P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Infiniti Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Infiniti definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

Hyundai P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Hyundai Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Hyundai definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

Hummer P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Hummer Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Hummer definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

Honda P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Honda Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Honda definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

GMC P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 GMC Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 GM definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….