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VW Code 28678

28678 Description And Summary :

Diameter in engine injector data, incompatible mechanic will need to check all electrical connections in the camshaft sensor transmission ratio, implausible or relays for electrical fuel pump 2 (j49), short-circuit after pluses will delay your vw fault.

28678 Possible Causes:

28678 vw fault code may be caused by one or more of the following:

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Reverse Input Circuit
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 28678 Code

  • Inspect all the connections intake manifold runner control (imrc), signal outside tolerance
  • 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