VW Code 18621
18621 Description And Summary : |
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This something to do with the intake camshaft timing exhaust bank 3 sensor 1 oxygen sensor signal, voltage too low during deceleration the system depends on oil pressure to switch between cam profiles a/c refrigerant distribution valve control, circuit / open . On the other hand mass-airflow sensor 3 (g456), signal to high will delay your vw fault. |
18621 Possible Causes:
18621 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Temperature Sensor B Circuit Range/Performance
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
What To Check After Fixing 18621 Code
- Inspect all the connections ecm/pcm power input, signal
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns