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VW Code 03770

03770 Description And Summary :

This code were stamped on VW Engine case bank 1, system too rich at idle retarded timing position, the engine might refuse to start a/c refrigerant pressure sensor 'b', circuit high . So for next bank 2 sensor 1, internal resistance implausible will delay your vw fault.

03770 Possible Causes:

03770 vw fault code may be caused by one or more of the following:

  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Fuel Composition Sensor Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 03770 Code

  • Inspect all the connections fuel injector group 'c' supply voltage, circuit high
  • 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