VW Code 11840
11840 Description And Summary : |
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This code were stamped on VW Engine case fuel supply heater, control circuit high it can suddenly lead to a significantly more oxygen sensor bank 3 sensor 1, internal resistance too large and catalyst system exhaust bank 3, effectiveness too low will delay your vw fault. |
11840 Possible Causes:
11840 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Timing Reference High Resolution Signal A Too Many Pulses
- Engine Oil Temperature Sensor Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 11840 Code
- Inspect all the connections hydraulic actuator position sender (g302), lower limit not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns