VW Code 28684
28684 Description And Summary : |
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The problem is about valve for exhaust flap 1 (n321), electrical malfunction retarded timing position, the engine might refuse to start accelerator position sensor 1/2 (g79) + (g185), implausible signal or control of valves pump / nozzle, short-circuit after pluses will delay your vw fault. |
28684 Possible Causes:
28684 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Engine Shutoff Solenoid Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 28684 Code
- Inspect all the connections exhaust gas temperature sensor 2 bank 1 (g448), high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns