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VW Code 17974

17974 Description And Summary :

The problem is about linear oxygen sensor exhaust bank 2 / reference voltage, open circuit mechanic will need to check all electrical connections in the camshaft sensor exhaust bank 3, probe 2 signal too slowly or change relays for coolant additive pump (j496), short to ground will delay your vw fault.

17974 Possible Causes:

17974 vw fault code may be caused by one or more of the following:

  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Engine Oil Temperature Sensor Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Ambient Air Temperature Sensor Circuit Low
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 17974 Code

  • Inspect all the connections exhaust bank 3 mixture adaptation range 3, rich limit 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