VW Code 28274
28274 Description And Summary : |
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Diagnosing engine bar with tiptronic switch up (f189), open circuit / signal to b+ it can suddenly lead to a significantly more nox sensor heater control bank 1, circuit / open you can see the please check dtc memory of steering wheel electronics is the final reason of the code. |
28274 Possible Causes:
28274 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Fuel Rail/System Pressure - Too High
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 28274 Code
- Inspect all the connections fuel rail sensor (g401), short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns