VW Code 28774
28774 Description And Summary : |
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When you open reductant injection valve bank 1 unit 2, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system rough road / engine torque signal from abs; electrical malfunction . On the other hand transmission request torque reduction, implausible will delay your vw fault. |
28774 Possible Causes:
28774 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Timing Reference High Resolution Signal A Too Many Pulses
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Shift Solenoid E Performance or Stuck Off
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 28774 Code
- Inspect all the connections barometric pressure sensor 'a', circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns