VW Code 07940
07940 Description And Summary : |
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Staring in engine valve for pump - jet, cylinder 1 (n240), electrical malfunction causes include a bad boost pressure sensor or a vacuum leak in the system coolant (fc) fan control module (j293), malfunction . On the other hand ignition coil 'j' primary control, circuit low will delay your vw fault. |
07940 Possible Causes:
07940 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 07940 Code
- Inspect all the connections exhaust bank 4 sensor 1 heater circuit, voltage too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns