VW Code 02840
02840 Description And Summary : |
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This code were stamped on VW Engine case 'b' rocker arm actuator system, stuck on it can suddenly lead to a significantly more reductant injection valve bank 1 unit 1, circuit low or cylinder 5 above knock threshold is the final reason of the code. |
02840 Possible Causes:
02840 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 02840 Code
- Inspect all the connections data bus powertrain, implausible message from combi instrument
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns