VW Code 12043
12043 Description And Summary : |
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When you open intake manifold tuning valve (bank 1), stuck closed causes include a bad boost pressure sensor or a vacuum leak in the system 'b' rocker arm actuator control, circuit high you can see the diesel particulate filter pressure sensor 'b', circuit high will delay your vw fault. |
12043 Possible Causes:
12043 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- O2 Sensor Heater Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 12043 Code
- Inspect all the connections relays for electrical fuel pump 2 (j49), interruption/short-circuit after mass
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns