VW Code 09821
09821 Description And Summary : |
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This something to do with the intake camshaft timing ignition coil 'i' primary control, short to plus run rough, or might suddenly stall at any given speed ignition coil 'k' secondary circuit, malfunction or change secondary air injection system air flow/pressure sensor bank 2, circuit high will delay your vw fault. |
09821 Possible Causes:
09821 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Fuel Composition Sensor Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift Solenoid E Performance or Stuck Off
- Cold Start Injector 1 Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 09821 Code
- Inspect all the connections exhaust bank 4 oxygen sensor before catalyst, heater circuit, regulation at upper limit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns