Charcoal Cannester Removale

#1

In Spec E30 can you remove or plug off the charcoal cannester? What would it matter either way if anything? I see where you can replace the fuel tank with a fuel cell and that would eliminate the cannester and system.

Vegas Vogel

#2

You can remove the charcoal cannister. Since it is part of the fuel tank vent system, it is best to replace the cannister with a small filter. There is no advantage that I know of in having or not having the cannister.

#3

I was always under the impression that it was not legal to remove. Where does it talk about the fuel vent and being removed. I hope it is as I want to remove mine.

Michael

#4

there was actually a discussion on this previously… The canister is used as part of the system by the ECU… If I remember correctly. Removing it would - or might hurt performance. Those Germans are pretty smart and don’t waste a lot of time on useless parts.

#5

At some point the DME sucks fuel vapor from the cannister while simultaneously leaning the mixture via the injectors to compensate. I’ve seen this in the DME’s injector mapping. I don’t know when this occurs tho.

#6

It happens during cruising. Not idle or full throttle. It is not likely to ever happen on track except maybe a cooldown lap.

#7

The previous owner removed the cannister from my car. Replacing is on my to do list, but I’d rather not re-install unless I have to. Jim L., Where were you this weekend and what rule says we can remove the cannister?

#8

Four weeks ago my wife fell and broke her hip. It has been repaired and she is doing well, but hasn’t recovered enough yet to spend a weekend alone.

#9

Jim,

Sorry to hear about your wife! I hope she heals quickly and we get to see you at the track again soon. You were missed this weekend…

#10

so sorry to hear that jim, best wishes for a speedy recovery

#11

DME ???

#12

Digital Motor Electronics. It is what BMW calls their ECU or computers that control the engine.