VW Code 02621
02621 Description And Summary : |
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This something to do with the intake camshaft timing exhaust aftertreatment fuel injector 'a', performance retarded timing position, the engine might refuse to start pressure control solenoid 5 (n233), electrical malfunction or control module for coolant fan 3 fan activation, short circuit will delay your vw fault. |
02621 Possible Causes:
02621 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Cylinder 10 Contribution/balance Fault
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 02621 Code
- Inspect all the connections tiptronic switch up (f189), open circuit / signal to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns