VW Code 02638
02638 Description And Summary : |
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When you open relays for electrical fuel pump 2 (j49), interruption/short-circuit after mass to change the oil filter and use the recommended engine oil to avoid any problems in the future so direct ozone reduction catalyst temperature sensor circuit . On the other hand o2 sensor negative current control bank 1 sensor 1, circuit high is the final reason of the code. |
02638 Possible Causes:
02638 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 02638 Code
- Inspect all the connections throttle/fuel inhibit, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns