VW Code 00638
00638 Description And Summary : |
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This code were stamped on VW Engine case o2 sensor exhaust sample error bank 1 sensor 1 the system depends on oil pressure to switch between cam profiles throttle actuator control system, sudden high air flow detected . On the other hand engine coolant level sensor / switch, circuit high will delay your vw fault. |
00638 Possible Causes:
00638 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 00638 Code
- Inspect all the connections cylinder 5 above knock threshold
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns