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Tag: P0423

P0423 Heated Catalyst Efficiency Below Threshold Bank 1

Possible causes – Air leak before catalytic converter – Faulty oxygen sensor– Faulty Catalytic Converter Tech notes As the code description implies the P0423 code means that the vehicle’s control module has detected that the three-way catalytic converter is not

Read More P0423 Heated Catalyst Efficiency Below Threshold Bank 1
Posted in OBDII Powertrain(P) Codes    Tagged P0423   

P0423 AUDI Heated Catalyst Efficiency Below Threshold Bank 1

Possible causes – Air leak before catalytic converter – Faulty oxygen sensor– Faulty Catalytic Converter Tech notes As the code description implies the P0423 code means that the vehicle’s control module has detected that the three-way catalytic converter is not

Read More P0423 AUDI Heated Catalyst Efficiency Below Threshold Bank 1
Posted in OBDII Powertrain(P) Codes    Tagged AUDI, P0423   

P0423 VOLKSWAGEN Heated Catalyst Efficiency Below Threshold Bank 1

Possible causes – Air leak before catalytic converter – Faulty oxygen sensor– Faulty Catalytic Converter Tech notes As the code description implies the P0423 code means that the vehicle’s control module has detected that the three-way catalytic converter is not

Read More P0423 VOLKSWAGEN Heated Catalyst Efficiency Below Threshold Bank 1
Posted in OBDII Powertrain(P) Codes    Tagged P0423, VOLKSWAGEN   

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