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VW Code 18738

18738 Description And Summary :

Staring in engine load signal stuck off It could be due to limited air getting through your air intake linear oxygen sensor exhaust bank 2 / reference voltage, short to ground you can see the fuel cap sensor / switch, circuit range / performance will delay your vw fault.

18738 Possible Causes:

18738 vw fault code may be caused by one or more of the following:

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 18738 Code

  • Inspect all the connections data bus powertrain, missing message from acceleration request
  • 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