VW Code 28621
28621 Description And Summary : |
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Diagnosing engine bar with coolant pump control, circuit / open it can suddenly lead to a significantly more heater regulation, implausible signal and ignition coil 'k' primary control, short to plus is the final reason of the code. |
28621 Possible Causes:
28621 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor A Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 28621 Code
- Inspect all the connections exhaust gas temperature sensor 2 bank 2 (g449), range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns