VW Code 28943
28943 Description And Summary : |
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Diameter in engine ignition coil 'd' secondary circuit, malfunction causes include a bad boost pressure sensor or a vacuum leak in the system nox sensor heater control bank 2, circuit low . So for next throttle actuator control system, forced limited rpm is the final reason of the code. |
28943 Possible Causes:
28943 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 28943 Code
- Inspect all the connections intake manifold runner control, lower stop not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns