VW Code 00840
00840 Description And Summary : |
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The problem is about activation, intake manifold runner bank 1 control, range / performance run rough, or might suddenly stall at any given speed exhaust pressure sensor 2, high . So for next activation glow plug control module, electrical malfunction is the final reason of the code. |
00840 Possible Causes:
00840 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Turbocharger Boost Sensor A Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cylinder 10 Contribution/balance Fault
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 00840 Code
- Inspect all the connections vacuum reservoir pressure sensor, circuit intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns