[D's Bimmer]

Update:

Fuel Tank Ventilation Malfunction.

Last week, I replaced the Fuel Tank Breather Valve for the second time in six months. Check Engine light went away. Car drove better but still got "bogged" down.

Part # 13907643106

Today, the same code returned. 190F08

What else within the Fuel Tank Ventilation System could be causing the car to bog down and through this code?

Thanks

[G.Newt]

Here's what the service plan says:
- Check the flow in the lines from the tank vent valve to the intake pipe.
- Check lines for correct connection.
- Replace fuel tank vent valve.
- Reset the values of the mixture adaptation after the fault rectification.

[Abzynthe]

Could it be the fuel cap not sealing correctly?

[Wires]

Originally Posted by Abzynthe

Could it be the fuel cap not sealing correctly?

Yes, I believe that throws that code as well.

[FlightF30]

Any fix yet? In a Identical predicament rn, replaced the breather nothing for a few months and now i’m getting the same code 190F08, wondering if it might be a faulty breather I got because it was a ebay part not oem, or if it’s something with the charcoal canister or some other thing. (nothing with fuel cap or fuel filler neck all of that has been checked) I wonder if it is something with resetting the mixture adaptation going to try it out and see what happens.