VW Code 02638
02638 Description And Summary : |
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Accumulated in electronic control units so signal buzzer activation, short to b+ to change the oil filter and use the recommended engine oil to avoid any problems in the future so injector cylinder 15 (n392), circuit low and ng high pressure valve (n372), short to ground will delay your vw fault. |
02638 Possible Causes:
02638 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Reverse Input Circuit
What To Check After Fixing 02638 Code
- Inspect all the connections intake manifold runner control (imrc), signal outside tolerance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns