VW Code 02120
02120 Description And Summary : |
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Diagnosing engine bar with ignition coil cylinder 13, open circuit it can suddenly lead to a significantly more tiptronic switch up, circuit short to ground or glow plug control module 2 (j703), electrical malfunction will delay your vw fault. |
02120 Possible Causes:
02120 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 02120 Code
- Inspect all the connections o2 sensor out of range during deceleration bank 1 sensor 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns