P1421

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Manufacturer Specific Definitions for P1421
Make | Fault Location |
---|---|
Audi | Secondary air injection (AIR) valve/solenoid - short to ground |
Bmw | Engine position system B, bank 1 – performance |
Buick | Intake Air Low Pressure Switch Circuit High Voltage |
Cadillac | Intake Air Low Pressure Switch Circuit High Voltage |
Chevrolet | Intake Air Low Pressure Switch Circuit High Voltage |
Citroen | Catalyst Damage |
Ford | Catalyst Damage |
Gm | Intake Air Low Pressure Switch Circuit High Voltage |
Infiniti | Cold start emission control – malfunction |
Lexus | Evaporative emission (EVAP) system – large leak |
Lincoln | Catalyst Damage |
Mercury | Catalyst Damage |
Mitsubishi | Clogged Or Dirty Catalyst |
Nissan | Cold start emission control – malfunction |
Peugeot | Catalyst Damage |
Saab | Exhaust gas recirculation (EGR) system -voltage high |
Subaru | Exhaust gas recirculation (EGR) system – voltage high |
Suzuki | Evaporative emission (EVAP) canister purge valve – mechanical fault |
Toyota | EVAP Canister Gross Leak |
Volkswagen | Secondary air injection (AIR) valve/ solenoid - short to ground |
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