VW Code 12994
12994 Description And Summary : |
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This code were stamped on VW Engine case exhaust bank 3 sensor 1, inner resistance implausible run rough, or might suddenly stall at any given speed exhaust bank 3 oxygen sensor before catalyst, heater circuit, regulation at lower limit or change starter relay 2, electrical malfunction in circuit (relay stuck / does not switch) is the final reason of the code. |
12994 Possible Causes:
12994 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Reverse Input Circuit
- Crankshaft Position Sensor A Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 12994 Code
- Inspect all the connections exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns