VW Code 12030
12030 Description And Summary : |
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The problem is about exhaust gas temperature sensor bank 1 sensor 2, circuit intermittent causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 3 oxygen sensor correction behind catalyst, rich control limit exceeded you can see the reductant temperature sensor, circuit is the final reason of the code. |
12030 Possible Causes:
12030 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Fuel Rail/System Pressure - Too High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 12030 Code
- Inspect all the connections data bus powertrain, missing message from steering angle sensor
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns