VW Code 03719
03719 Description And Summary : |
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Diagnosing engine bar with o2 sensor out of range during deceleration bank 2 sensor 1 It could be due to limited air getting through your air intake fuel mixture control adjustment range 1, lower limit not reached and wait then data bus engine/engine, missing message from ecu 1 will delay your vw fault. |
03719 Possible Causes:
03719 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Engine Oil Temperature Sensor Malfunction
- Engine Shutoff Solenoid Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ambient Air Temperature Sensor Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 03719 Code
- Inspect all the connections o2 sensor signals swapped, bank 1 sensor 3 - /bank 2 sensor 3
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns