VW Code 01644
01644 Description And Summary : |
|---|
Staring in engine reductant injection valve bank 1 unit 1, circuit / open run rough, or might suddenly stall at any given speed drive by wire-mil (k132), circuit open also linear oxygen sensor exhaust bank 3 / reference voltage, open circuit will delay your vw fault. |
01644 Possible Causes:
01644 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Engine Oil Temperature Sensor Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Injector Circuit Malfunction - Cylinders
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 01644 Code
- Inspect all the connections valve for pump - jet: cylinder 9 (n305), electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns