P1028 Codice di errore diagnostico (5 interpretazioni)

The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Pre - Catalyst Fuel Trim). This is the manufacturer-specific definition used by BMW.

The control module detected an interruption (open circuit) in the Ignition coil, 6 - secondary circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Dodge.

The control module detected an interruption (open circuit) in the Intake manifold air control solenoid circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.

The control module detected an interruption (open circuit) in the Intake manifold air control solenoid circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen.

The control module registered the fault condition described as "Throttle Body Internal Fault". This is the manufacturer-specific definition used by Volvo.