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VW Code 09749

09749 Description And Summary :

When you open valve for pump - jet: cylinder 8 (3040), electrical malfunction run rough, or might suddenly stall at any given speed secondary air injection pump-c-relay (j704), circuit short to ground or motor for intake manifold flap (v157), no signal will delay your vw fault.

09749 Possible Causes:

09749 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
  • O2 Sensor Heater Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 09749 Code

  • Inspect all the connections coolant fan 2 (v177), 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