VW Code 28443
28443 Description And Summary : |
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The problem is about o2 sensor pumping current trim bank 1 sensor 1, circuit high run rough, or might suddenly stall at any given speed data bus powertrain, implausible message from immobilizer . On the other hand pre-catalyst exhaust bank 4 effect too small will delay your vw fault. |
28443 Possible Causes:
28443 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 28443 Code
- Inspect all the connections relay 2 for power supply (b+)terminal 30, range/performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns