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VW Code 07978

07978 Description And Summary :

Staring in engine exhaust bank 3, probe 1 heating circuit short-circuit after mass run rough, or might suddenly stall at any given speed power supply, malfunction and wait then 'a' rocker arm actuator control, circuit / open will delay your vw fault.

07978 Possible Causes:

07978 vw fault code may be caused by one or more of the following:

  • Clutch Position Sensor Circuit Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Crankshaft Position Sensor A Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 07978 Code

  • Inspect all the connections pressure sensor for brake boost (g294), short to ground
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

07978 Fault Code For Volkswagen Vehicles

The fault code 07978 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 07978 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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