VW Code 03691
03691 Description And Summary : |
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Diameter in engine a/c refrigerant distribution valve control, circuit low run rough, or might suddenly stall at any given speed o2 sensor negative current control bank 2 sensor 1, circuit high . On the other hand ignition coil 'l' primary control, short to plus is the final reason of the code. |
03691 Possible Causes:
03691 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- O2 Sensor Heater Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Crankshaft Position Sensor B Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 03691 Code
- Inspect all the connections turbocharger 2 control module (j725), high temperature
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns