VW Code 12402
12402 Description And Summary : |
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Accumulated in electronic control units so secondary air injection valve 4 (n385), circuit open circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so secondary air injection valve 3 (n384), circuit short to ground and injector cylinder 14 (n392), open circuit is the final reason of the code. |
12402 Possible Causes:
12402 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Cold Start Injector 1 Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 12402 Code
- Inspect all the connections turbo/super charger over-boost condition
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns