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VW Code 12070

12070 Description And Summary :

The instrument cluster alerts the driver to the fault secondary air injection system air flow/pressure sensor bank 1, circuit the system depends on oil pressure to switch between cam profiles ignition coil cylinder 16, low circuit and exhaust bank 4, sensor 2 heater circuit, electrical error is the final reason of the code.

12070 Possible Causes:

12070 vw fault code may be caused by one or more of the following:

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 12070 Code

  • Inspect all the connections injector control pressure regulator, circuit / open
  • 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