2.2 ohm should be between 3.5 and 3.8 v
I have a tank that does this if it gets below half full (annoying only tank that does that and only once below the half way mark)
same tank as above mentioned once past half point sometimes I have to tip it upside down and vape excess from wick so it won't flood
is the tank cold? let the juice and tank warm, hold it in hand or in pocket before vaping.
over night, or when not in use for extended use store tank upside down to keep the wick from flooding.