VW Code 13121
13121 Description And Summary : |
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Accumulated in electronic control units so exhaust bank 3 sensor 1, inner resistance implausible causes include a bad boost pressure sensor or a vacuum leak in the system throttle/pedal position sensor / switch 'e', circuit intermittent or change control unit programming, programming not finished is the final reason of the code. |
13121 Possible Causes:
13121 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Shift Solenoid E Performance or Stuck Off
- O2 Sensor Heater Circuit Malfunction
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 13121 Code
- Inspect all the connections ignition coil 'd' secondary circuit, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns