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VW Code 02978

02978 Description And Summary :

Diameter in engine exhaust bank 3, probe 2 signal too slowly it can suddenly lead to a significantly more please check dtc memory of abs control module or change control module defect is the final reason of the code.

02978 Possible Causes:

02978 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Cylinder 1 Injector Circuit Low
  • Clutch Position Sensor Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 02978 Code

  • Inspect all the connections linear oxygen sensor exhaust bank 3 / pump current, open circuit
  • 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