TuningBot DTC Database · v4.37.14
5 manufacturer-specific interpretations across 4 manufacturers in the TuningBot DTC database.
BMWThe 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.
DodgeThe 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.
VAGThe 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.
VolvoThe control module registered the fault condition described as "Throttle Body Internal Fault". This is the manufacturer-specific definition used by Volvo.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (5 interpretations). 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.
P1028 is a manufacturer-specific code. In this database it is documented for: BMW, Dodge, VAG, Volvo. The same number can mean something different on other brands.
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Understand the system behind this code: Oxygen Sensors (Lambda)
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