VW Code 12398
12398 Description And Summary : |
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This code were stamped on VW Engine case exhaust bank 3 sensor 1, inner resistance implausible it can suddenly lead to a significantly more motor for intake manifold flap (v157), short to b+ . On the other hand valve for exhaust flap 1 (n321), short to ground will delay your vw fault. |
12398 Possible Causes:
12398 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail/System Pressure - Too High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 12398 Code
- Inspect all the connections hydraulic actuator position sender (g302), electrical malfunction in circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns