VW Code 03688
03688 Description And Summary : |
|---|
Accumulated in electronic control units so turbocharger boost control position sensor 'b', circuit range / performance causes include a bad boost pressure sensor or a vacuum leak in the system fuel mixture control adjustment range 3, higher limit not reached or change data bus powertrain, malfunction will delay your vw fault. |
03688 Possible Causes:
03688 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)
- Glow Plug/Heater Circuit 'A' Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 03688 Code
- Inspect all the connections control module 1 for cooling fan, excess temperature
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns