VW Code 13721
13721 Description And Summary : |
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Diameter in engine power supply (b+) terminal 15, low voltage It could be due to limited air getting through your air intake vacuum reservoir pressure sensor, circuit intermittent . So for next injector cylinder 15 (n392), circuit low is the final reason of the code. |
13721 Possible Causes:
13721 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Clutch Position Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor A Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 13721 Code
- Inspect all the connections exhaust bank 1 sensor 1 o2 sensor signal, implausibly lean
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns