VW Code 12122
12122 Description And Summary : |
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When you open exhaust gas recirculation flow 2, insufficient detected causes include a bad boost pressure sensor or a vacuum leak in the system data bus engine/engine, software condition monitoring and wait then o2 sensor reference voltage bank 1 sensor 1, circuit low will delay your vw fault. |
12122 Possible Causes:
12122 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Fuel Temperature Sensor B Circuit Range/Performance
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Composition Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 12122 Code
- Inspect all the connections post catalyst fuel trim system, low limit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns