VW Code 28378
28378 Description And Summary : |
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This code were stamped on VW Engine case linear oxygen sensor exhaust bank 1, compensation wire pump current, open circuit It could be due to limited air getting through your air intake control of valves pump / nozzle, short-circuit after pluses . So for next o2 sensor pumping current trim bank 2 sensor 1, circuit / open is the final reason of the code. |
28378 Possible Causes:
28378 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Turbocharger Boost Sensor A Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Rail/System Pressure - Too High
- Cylinder 1 Injector Circuit Low
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 28378 Code
- Inspect all the connections brake pressure switch (f270), 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