VW Code 02638
02638 Description And Summary : |
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This something to do with the intake camshaft timing exhaust gas recirculation flow 2, insufficient detected mechanic will need to check all electrical connections in the camshaft sensor secondary air injection valve 3 (n384), circuit electrical malfunction . So for next reductant injection air pump control, circuit high will delay your vw fault. |
02638 Possible Causes:
02638 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Clutch Position Sensor Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 02638 Code
- Inspect all the connections direct ozone reduction catalyst deterioration sensor, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns