rough or even stall. Not wanting to wait for a new car-
bon canister to arrive, I decided to remove it. I know this isn’t strictly environmentally correct and may not even be legal in some states (koff- CALIFORNIAkoff), but I was impa- tient, and it was an easy task to complete. Three loop fittings hold the carbon canister to the frame rails, and the can connects to the evapora- tive system with three rubber hoses. One hose goes to the fuel system fit- ting on the right side of the fuel tank; the other two connect to a sensor on the left side of the tank. One of the hoses from the sensor goes to the left side throttle body; when this comes off, its port on the throttle body gets a rubber cap. Only the hose going to the right side fuel fitting needs to be removed from the canister; it must be re-routed down so anything (like fuel vapors or fuel overflow) that passes through it goes to the ground. Confident I fixed my problem, I
started the bike up. It cranked a little, then ran for about 10 seconds before it shut off on its own. It wouldn’t start again, and since I couldn’t figure out why, George suggested I put the bike on the GS-911. There were several errors present, but only one was alarming: one fault code showed that the fuel pump controller might be bad. George explained to me that the
fuel pump controllers go bad some- times, usually from corrosion result- ing from water and/or gas sitting on them. I had the fuel pump flange recall done in the summer (I’d actu- ally fixed the leaky plastic fitting myself several years ago, but BMW insisted I have their collar put on my fuel pump flange.) He handed me a controller he knew was good; I swapped it for mine (two screws and two electrical connections) and cleared the codes.
56 BMW OWNERS NEWS March 2016
The other end of the sensor fitting is protected by the body panels, but can easily be tucked in or wrapped with electrical tape. Having this sensor disconnected will always throw a fault code, but as long as you remember that, it’s not a big deal.
Trimming the drain hose coming off the right-side fuel tank flange at an angle ensures proper draining and prevents substances from getting sucked into the hose.
TECH
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