VW Code 04025
04025 Description And Summary : |
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This code were stamped on VW Engine case exhaust bank 1 sensor 1 oxygen sensor signal, voltage too low during deceleration causes include a bad boost pressure sensor or a vacuum leak in the system exhaust gas temperature sensor, bank 2 sensor 4, circuit low and throttle/fuel inhibit, circuit low will delay your vw fault. |
04025 Possible Causes:
04025 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Turbocharger Boost Sensor A Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 1 Injector Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 04025 Code
- Inspect all the connections exhaust gas recirculation throttle control, circuit 'a' low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns