charcoal vapor canister and UOA??

[Russell]

I just replaced my charcoal vapor canister on my 95 BMW 525i with 111,000 miles. Would a defective canister affect UOA? My last two UOA from Blackstone showed fuel dilution issues. Crankcase ventilation was suspected.

Of course I could have one or more bad coils or fuel injection issues. Just trying to eliminate potential issues. TIA

 

[Alan]

When you fill up on gas do you top off?The cannister can get flooded from a top off.

 

[Russell]

I used to top off the tank all the time. I quit doing it when I heard that it coulc flood/plug the canister over time.