VW Code 12077
12077 Description And Summary : |
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When you open exhaust bank 4, sensor 2 heater circuit, short-circuit after mass the system depends on oil pressure to switch between cam profiles exhaust bank 3/4 lambda probes before kat exchanges . So for next post catalyst fuel trim system, low limit will delay your vw fault. |
12077 Possible Causes:
12077 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Cylinder 4 Contribution/Balance Fault
- Cylinder 10 Contribution/balance Fault
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 12077 Code
- Inspect all the connections exhaust gas temperature, bank 1 sensor 2, out of range
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns