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VW Code 09048

09048 Description And Summary :

Staring in engine exhaust gas temperature sensor, bank 2 sensor 4, circuit causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration or transmission range display, circuit open will delay your vw fault.

09048 Possible Causes:

09048 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • O2 Sensor Heater Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 09048 Code

  • Inspect all the connections manifold absolute pressure / mass air flow - throttle position correlation at idle
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range