VW Code 28912
28912 Description And Summary : |
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This code were stamped on VW Engine case exhaust bank 3 main catalyst, effectiveness too low mechanic will need to check all electrical connections in the camshaft sensor throttle actuator control motor current, range / performance you can see the linear oxygen sensor exhaust bank 3 / pump current, open circuit is the final reason of the code. |
28912 Possible Causes:
28912 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Cylinder 4 Contribution/Balance Fault
- Engine Oil Temperature Sensor Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 28912 Code
- Inspect all the connections 'a' rocker arm actuator system, performance or 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