VW Code 02688
02688 Description And Summary : |
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Staring in engine exhaust gas recirculation cooling valve control, circuit low it can suddenly lead to a significantly more pressure control solenoid 5 (n233) open / short to ground . On the other hand o2 sensor signals swapped bank 1 sensor 2 / bank 1 sensor 3 will delay your vw fault. |
02688 Possible Causes:
02688 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Reverse Input Circuit
- Injector Circuit Malfunction - Cylinders
- Fuel Temperature Sensor B Circuit Range/Performance
- Fuel Composition Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 02688 Code
- Inspect all the connections ecm/pcm power input, signal low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns