VW Code 28658
28658 Description And Summary : |
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The problem is about control module for coolant fan 3 fan activation, short circuit causes include a bad boost pressure sensor or a vacuum leak in the system hydraulic pressure sensor 1, too low you can see the throttle actuator control system, stuck open is the final reason of the code. |
28658 Possible Causes:
28658 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Reverse Input Circuit
What To Check After Fixing 28658 Code
- Inspect all the connections intake manifold flap; bank 1, stuck open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns