VW Code 28644
28644 Description And Summary : |
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The problem is about throttle actuator control module, performance causes include a bad boost pressure sensor or a vacuum leak in the system turbocharger boost control position sensor 'b', circuit low and reductant temperature sensor, circuit range / performance will delay your vw fault. |
28644 Possible Causes:
28644 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Clutch Position Sensor Circuit Malfunction
- Reverse Input Circuit
- Shift Solenoid E Performance or Stuck Off
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 28644 Code
- Inspect all the connections exhaust bank 3 sensor 1, voltage too low or air leak
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns