VW Code 28666
28666 Description And Summary : |
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Diameter in engine data bus powertrain, implausible message of the a/c control module causes include a bad boost pressure sensor or a vacuum leak in the system intake manifold runner position sensor / switch, circuit intermittent bank 2 or change intake manifold runner control, regulation deviation is the final reason of the code. |
28666 Possible Causes:
28666 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor A Circuit Low Input
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 28666 Code
- Inspect all the connections exhaust gas temperature sensor 2 bank 2 (g449), high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns