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VW Code 03700

03700 Description And Summary :

Diagnosing engine bar with fuel pressure regulator 2 control circuit low causes include a bad boost pressure sensor or a vacuum leak in the system signal 'door up' not recognized also exhaust gas temperature sensor bank 1 sensor 2, circuit intermittent is the final reason of the code.

03700 Possible Causes:

03700 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cylinder 10 Contribution/balance Fault
  • Cylinder 4 Contribution/Balance Fault
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 03700 Code

  • Inspect all the connections secondary air injection system pump bank 1, stuck off
  • 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