VW Code 12148
12148 Description And Summary : |
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The problem is about exhaust bank 2 mixture adaptation range 3, rich limit exceeded causes include a bad boost pressure sensor or a vacuum leak in the system starter interlock, circuit short to ground . So for next cylinder 12 above knock threshold will delay your vw fault. |
12148 Possible Causes:
12148 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Clutch Position Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Glow Plug/Heater Circuit 'A' Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Rail/System Pressure - Too High
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 12148 Code
- Inspect all the connections linear oxygen sensor exhaust bank 3 / pump current, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns