OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
Free on OBD DashX
Looking for real-world repair data?
OBD DashX shows which problems come with each code, how often they show up in other vehicles, and how to fix them — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
Fault codes
P1009
Air Mass Meter 1/2 Implausible Signal From Load Detection
Volkswagen
Fuel and Air Metering
High severity
P1013
Intake Camshaft Position Actuator Park Position Bank 2
Volkswagen
Ignition System
High severity
P1017
Valvetronic Eccentric Shaft Sensor Plausibility
Volkswagen
Fuel and Air Metering
High severity
P1026
Intake Manifold Air Control Solenoid Short To Positive
Volkswagen
Fuel and Air Metering
High severity
P1029
Intake Manifold Air Control Valve Position Sensor Upper Limit Not Reached
Volkswagen
Fuel and Air Metering
High severity
P1034
Nitrogen Oxides Sensor Signal Outside Tolerance
Volkswagen
Auxiliary Emissions Control
Medium severity
P1052
Air Fuel Ratio Sensor 1 Heater Control Circuit High Bank 2
Volkswagen
Fuel and Air Metering
High severity
Scan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.