VW Code 13921
13921 Description And Summary : |
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Staring in engine load signal from alternator terminal df, open or short to b+ the system depends on oil pressure to switch between cam profiles ignition coil cylinder 13, high circuit you can see the glow plug / heater indicator (k29), circuit open / short to ground will delay your vw fault. |
13921 Possible Causes:
13921 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Cylinder 10 Contribution/balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 13921 Code
- Inspect all the connections o2 sensor signals swapped bank 2 sensor 2 / 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