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VW Code 01797

01797 Description And Summary :

Diagnosing engine bar with secondary air injection system pump bank 1, stuck on causes include a bad boost pressure sensor or a vacuum leak in the system hydraulic pressure sensor 2, too high and wait then please check dtc memory of all wheel drive ecu is the final reason of the code.

01797 Possible Causes:

01797 vw fault code may be caused by one or more of the following:

  • Cold Start Injector 1 Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Crankshaft Position Sensor B Circuit Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Cylinder 1 Injector Circuit Low
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 01797 Code

  • Inspect all the connections engine torque reduction, fault
  • 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