VW Code 28729
28729 Description And Summary : |
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The instrument cluster alerts the driver to the fault reductant temperature sensor, circuit intermittent It could be due to limited air getting through your air intake malfunction indication light (k83), short to b+ and wait then starter interlock, circuit short to ground will delay your vw fault. |
28729 Possible Causes:
28729 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ambient Air Temperature Sensor Circuit Low
- Fuel Temperature Sensor B Circuit Range/Performance
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor A Circuit Low Input
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 28729 Code
- Inspect all the connections power supply voltage, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns