P1421

BAT Team

By BAT Team (Contact Me)
Last Updated 2017-01-17
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Trouble CodeFault LocationProbable Cause
P1421 Secondary Air Injection Valve Circuit Short To Ground (AUDI, VOLKSWAGEN)
Secondary Air System Bank 1 (BMW)
Intake Air Low Pressure Switch Circuit High Voltage (BUICK, CADILLAC, CHEVROLET, GMC)
Cold Start Control (INFINITI, NISSAN)
EVAP Canister Gross Leak (LEXUS, TOYOTA)
Clogged Or Dirty Catalyst (MITSUBISHI)
Exhaust Gas Recirculation Circuit High Input (SUBARU)
EVAP System Vent Valve Stuck Open/Closed (SUZUKI)

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Other Manufacturer Specific Definitions for P1421

Intake Air Low Pressure Switch Circuit High Voltage (GM)
Catalyst Damage (Ford)
EVAP Canister Gross Leak (Toyota)
Secondary air injection (AIR) valve/ solenoid - short to ground (Volkswagen)
Secondary air injection (AIR) valve/solenoid - short to ground (Audi)
Engine position system B, bank 1 – performance (BMW)
Intake Air Low Pressure Switch Circuit High Voltage (Buick)
Intake Air Low Pressure Switch Circuit High Voltage (Cadillac)
Intake Air Low Pressure Switch Circuit High Voltage (Chevrolet)
Cold start emission control – malfunction (Infiniti)
Evaporative emission (EVAP) system – large leak (Lexus)
Catalyst Damage (Lincoln)
Catalyst Damage (Mercury)
Clogged Or Dirty Catalyst (Mitsubishi)
Cold start emission control – malfunction (Nissan)
Exhaust gas recirculation (EGR) system -voltage high (Saab)
Exhaust gas recirculation (EGR) system – voltage high (Subaru)
Evaporative emission (EVAP) canister purge valve – mechanical fault (Suzuki)

BAT Team Discussions for P1421

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