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VW Code 09078

09078 Description And Summary :

The problem is about generator lamp/l-terminal, circuit low retarded timing position, the engine might refuse to start evaporative emissions (evap) fuel vapour temperature sensor, circuit and wait then steering angle signal, error message from steering angle sensor will delay your vw fault.

09078 Possible Causes:

09078 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Ambient Air Temperature Sensor Circuit Low
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 09078 Code

  • Inspect all the connections exhaust gas temperature sensor bank 2 sensor 2, circuit range / performance
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

09078 Fault Code For Volkswagen Vehicles

The fault code 09078 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 09078 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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