VW Code 28749
28749 Description And Summary : |
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The problem is about turbocharger boost control position sensor 'b', circuit range / performance It could be due to limited air getting through your air intake controller for radiator exhaust oh run (j138), short-circuit after pluses . So for next turbocharger control module 2, implausible message will delay your vw fault. |
28749 Possible Causes:
28749 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail Pressure Sensor Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 28749 Code
- Inspect all the connections secondary air injection valve 4 (n385), circuit 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