VW Code 28438
28438 Description And Summary : |
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When you open nox sensor heater sense bank 1, circuit high to change the oil filter and use the recommended engine oil to avoid any problems in the future so mil call-up circuit / transmission control module, short to ground and wait then exhaust gas temperature, bank 1 sensor 2, out of range is the final reason of the code. |
28438 Possible Causes:
28438 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Cylinder 4 Contribution/Balance Fault
- Glow Plug/Heater Circuit 'A' Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 28438 Code
- Inspect all the connections clutch pedal position (cpp) switch (f194), implausible signal
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns