VW Code 28649
28649 Description And Summary : |
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The problem is about exhaust bank 4, sensor 1, signal too slowly It could be due to limited air getting through your air intake throttle actuator control system, stuck closed also exhaust aftertreatment fuel injector 'a', circuit low will delay your vw fault. |
28649 Possible Causes:
28649 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Cold Start Injector 1 Malfunction
What To Check After Fixing 28649 Code
- Inspect all the connections data bus engine/engine, software condition monitoring
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns