VW Code 14121
14121 Description And Summary : |
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Diameter in engine accelerator position sensor 1/2 (g79) / (g185), implausible signal retarded timing position, the engine might refuse to start supply voltage for fuel injector group a, short to ground . So for next fuel pressure regulator 2 control circuit high will delay your vw fault. |
14121 Possible Causes:
14121 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Turbocharger Boost Sensor A Circuit Low
- Cold Start Injector 1 Malfunction
What To Check After Fixing 14121 Code
- Inspect all the connections reductant injection valve circuit range / performance, bank 2 unit 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns