VW Code 19721
19721 Description And Summary : |
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The instrument cluster alerts the driver to the fault vehicle speed sensor 'b', intermittent / erratic / high run rough, or might suddenly stall at any given speed pre-catalyst exhaust bank 4 effect too small or ignition coil 'e' secondary circuit, malfunction will delay your vw fault. |
19721 Possible Causes:
19721 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Exhaust Gas Recirculation Sensor B Circuit High
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 19721 Code
- Inspect all the connections data bus powertrain, implausible message from control module fuel pump
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns