VW Code 00040
00040 Description And Summary : |
|---|
When you open data-bus powertrain, missing message from brake control module to change the oil filter and use the recommended engine oil to avoid any problems in the future so valve for pump - jet, cylinder 4 (n243), electrical malfunction . On the other hand valve for pump - jet: cylinder 9 (n305), regulation range exceeded will delay your vw fault. |
00040 Possible Causes:
00040 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Crankshaft Position Sensor A Circuit Low Input
- Injector Circuit Malfunction - Cylinders
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail/System Pressure - Too High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 00040 Code
- Inspect all the connections exhaust aftertreatment fuel injector 'a', performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns