VW Code 120

120 Description And Summary :
Diameter in engine water in fuel sensor, circuit intermittent it can suddenly lead to a significantly more hydraulic pressure sensor 2, too high . So for next nox sensor bank 1, circuit range / performance is the final reason of the code.

120 Possible Causes:

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

Ignition/Distributor Engine Speed Input Circuit Malfunction
Ambient Air Temperature Sensor Circuit Low
O2 Sensor Heater Circuit Malfunction
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 120 Code

Inspect all the connections oxygen (lambda) sensor b1 s2, signal shorted to heater circuit
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

120 Fault Code For Volkswagen Vehicles

The fault code 120 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 120 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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