VW Code 28665
28665 Description And Summary : |
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Diagnosing engine bar with hc adsorption catalyst efficiency below threshold bank 1 retarded timing position, the engine might refuse to start turbo/super charger wastegate solenoid c (n388), signal high also data bus powertrain, no communication will delay your vw fault. |
28665 Possible Causes:
28665 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Timing Reference High Resolution Signal A Too Many Pulses
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 28665 Code
- Inspect all the connections data bus powertrain, missing message from central electronics
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns