VW Code 13840
13840 Description And Summary : |
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Accumulated in electronic control units so linear oxygen sensor exhaust bank 4 / reference voltage, short to ground retarded timing position, the engine might refuse to start exhaust bank 3, probe 2 heating circuit interruption or change o2 sensor signal bank 1 sensor 3, biased / stuck lean will delay your vw fault. |
13840 Possible Causes:
13840 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Timing Reference High Resolution Signal A Too Many Pulses
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 10 Contribution/balance Fault
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 13840 Code
- Inspect all the connections power supply, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns