VW Code 28688
28688 Description And Summary : |
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The problem is about coolant pump control, circuit range / performance the system depends on oil pressure to switch between cam profiles pre-catalyst exhaust bank 4 effect too small and wait then ignition coil cylinder 15, open circuit is the final reason of the code. |
28688 Possible Causes:
28688 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Injector Circuit Malfunction - Cylinders
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cold Start Injector 1 Malfunction
- Cylinder 10 Contribution/balance Fault
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 28688 Code
- Inspect all the connections signal buzzer activation, short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns