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VW Code 01120

01120 Description And Summary :

This code were stamped on VW Engine case sensor 1 for hydraulic pressure in transmission, open or short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system engine torque reduction, short to b+ and linear oxygen sensor exhaust bank 3 / reference voltage, implausible will delay your vw fault.

01120 Possible Causes:

01120 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Crankshaft Position Sensor A Circuit Low Input
  • Ambient Air Temperature Sensor Circuit Low
  • Turbocharger Boost Sensor A Circuit Low
  • Fuel Rail/System Pressure - Too High
  • Reverse Input Circuit
  • Engine Shutoff Solenoid Malfunction

What To Check After Fixing 01120 Code

  • Inspect all the connections post catalyst fuel trim system, low 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