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VW Code 18651

18651 Description And Summary :

Diameter in engine ignition switch run position, circuit low It could be due to limited air getting through your air intake diesel particulate filter differential pressure too low bank 2 or post catalyst fuel trim system, low limit is the final reason of the code.

18651 Possible Causes:

18651 vw fault code may be caused by one or more of the following:

  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Engine Shutoff Solenoid Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 18651 Code

  • Inspect all the connections exhaust bank 3 oxygen sensor before catalyst, heater circuit, regulation at upper limit
  • 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