FANS AND A/C uploads: AWESOME! AWESOME! ... yea, easier for the "brian" to understand (*brain lol)

Oh, yea, MAP! i scrolled back up to #4 and saw we were talking about both. but you were only talking about testing the MAP.

Ok on the check valve, i left it there because it was OEM for the Caprice but i didnt think about the elkys own cap that is also vented. So does that mean that the Caprice didnt have a vented Cap? just curious, didnt notice when i had the donor car. that was like 12 yrs ago and only had it for about 2 months. I'll keep an eye on that possible liquefied fuel getting to the canister. i replaced my original 84 elky fuel tank to a new baffled tank from an 86' 4.3L elky. Also, i have the in tank fuel pump and the vapor line comes out of the top of the tank. With all of this, the canister sits @ the frame level (near rear bumper)and about mid level with the tank. so hopefully i get no fuel in the line.