VW Code 11556
11556 Description And Summary : |
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The problem is about exhaust bank 4 main catalyst, effectiveness too low It could be due to limited air getting through your air intake data bus powertrain, implausible message from control module battery monitoring or exhaust gas temperature sensor, bank 1 sensor 5, circuit / open will delay your vw fault. |
11556 Possible Causes:
11556 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Crankshaft Position Sensor A Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 11556 Code
- Inspect all the connections secondary air injection system pump bank 1, stuck off
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns