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VW Code 02278

02278 Description And Summary :

This code were stamped on VW Engine case exhaust gas temperature sensor, bank 1 sensor 4, circuit intermittent / erratic mechanic will need to check all electrical connections in the camshaft sensor drive by wire-mil (k132), circuit short to ground . So for next sensor 3 for intake air temperature (g520), signal low will delay your vw fault.

02278 Possible Causes:

02278 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Clutch Position Sensor Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 02278 Code

  • Inspect all the connections valve for pump - jet: cylinder 7 (n303), regulation range exceeded
  • 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