VW Code 19438
19438 Description And Summary : |
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The instrument cluster alerts the driver to the fault o2 sensor negative current control bank 1 sensor 1, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system 'a' rocker arm actuator system, stuck on and wait then fuel mixture control adjustment range 3, higher limit not reached will delay your vw fault. |
19438 Possible Causes:
19438 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Cylinder 4 Contribution/Balance Fault
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 19438 Code
- Inspect all the connections direct ozone reduction catalyst deterioration sensor, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns