VW Code 15121
15121 Description And Summary : |
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The instrument cluster alerts the driver to the fault exhaust bank 4, sensor 1, tension too largely mechanic will need to check all electrical connections in the camshaft sensor internal control module, malfunction or change turbo/super charger wastegate solenoid d (n389), signal high is the final reason of the code. |
15121 Possible Causes:
15121 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ambient Air Temperature Sensor Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Rail/System Pressure - Too High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 15121 Code
- Inspect all the connections secondary air injection valve 3 (n384), circuit short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns