Ok I have been fighting a p0087 code for about 4 months now.when I bought my airdogII 165 they just came out with the new design with quick connects and what not. Anyways it says to remove a 18" piece of flex hose for the fuel suction line?.. Well what I thought was that line, it's a flex line but it's more like 25" long,what line exactly do you have to remove. The directions were kind of confusing. Also I don't think I got a airdog T to put on the fuel cooler and hook the other lines up to..can someone help me out on which flex line it is, there are 3 or so up around the top of tank