Motorhead X Posted Friday at 03:44 PM Posted Friday at 03:44 PM The MJ is running and sounding better than ever with my new Rough Country CAI, but now my EVAP line is venting gas fumes into my engine bay because the CAI did not come with a connection for the EVAP system. I want to avoid gas fumes altogether when it goes in the garage. Should I add a custom connection to the air intake tube or disconnect the EVAP system entirely (if so, how is that done). No inspection here in NC. Thanks everyone.
89 MJ Posted Friday at 07:13 PM Posted Friday at 07:13 PM The evap system is to help deal with fuel vapors. From my understanding, you cannot delete it because it is a vent for the fuel tank. If I were you, I'd get rid of the Rough Country CAI (that is likely actually a hot air intake unless there is an air box around the air filter) and go back to a stock air intake. In lieu of that, adding a custom connection will probably be your best bet.
Motorhead X Posted Friday at 11:12 PM Author Posted Friday at 11:12 PM Yes, that's the direction I'm thinking of going. Actually, the CAI has been surprisingly good and does have an air box to a greater degree. It seems the stock box was limiting for air flow which is the main reason I installed it. At the very least, it sounds fantastic. I have no way of determining if it increases power, but my impression is it does, more than I was expecting. Install was a pain because it doesn't fit correctly out of the box and required some hammering on the connection braces, one of which there is no way it will work. But it is solidly anchored in place. I don't plan on going back to the stock box unless this EVAP situation doesn't get resolved properly.
Gojira94 Posted 18 hours ago Posted 18 hours ago I got one of those open box for 1/2 price. I popped a hole and grommet n it and connected it. Used a piece of 45* rubber hose and a short piece of tube to make the connection on the intake pipe due to the angle.
Motorhead X Posted 11 hours ago Author Posted 11 hours ago This looks good. Maybe a 3/4" hole and 5/8" piece of tubing? Did you find the grommet and tubing at an auto parts store or did you have parts laying around?
Gojira94 Posted 7 hours ago Posted 7 hours ago Just stuff I had lying around. Same diameter as the main evap tube from the canister.
Motorhead X Posted 3 hours ago Author Posted 3 hours ago Thank you guys. Mod went good. I used a step bit down to 11/16" and a Dorman grommet out of an assortment pack.
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