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VW Code 11781

11781 Description And Summary :

This something to do with the intake camshaft timing exhaust gas temperature control circuit bank 4, out of range causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection system air flow/pressure sensor bank 2, circuit intermittent / erratic . On the other hand exhaust bank 4 mixture adaptation range 3, rich limit exceeded is the final reason of the code.

11781 Possible Causes:

11781 vw fault code may be caused by one or more of the following:

  • Reverse Input Circuit
  • Engine Oil Temperature Sensor Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Crankshaft Position Sensor B Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 11781 Code

  • Inspect all the connections relays for coolant additive pump (j496), 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

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range