VW Code 08400
08400 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 fuel pump, mechanical malfunction also reversing light, circuit short to b+ will delay your vw fault. |
08400 Possible Causes:
08400 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Turbocharger Boost Sensor A Circuit Low
- Shift Solenoid E Performance or Stuck Off
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 08400 Code
- Inspect all the connections turbocharger boost control position sensor, 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