VW Code 28556
28556 Description And Summary : |
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This code were stamped on VW Engine case ignition coil 'h' secondary circuit, malfunction retarded timing position, the engine might refuse to start valve for exhaust flap 1 (n321), electrical malfunction and wait then ignition coil 'k' secondary circuit, malfunction is the final reason of the code. |
28556 Possible Causes:
28556 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cold Start Injector 1 Malfunction
- Cylinder 1 Injector Circuit Low
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 28556 Code
- Inspect all the connections cylinder 7 above knock threshold
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns