well i recently purchased a injen cold air intake, and when i installed it yesterday, i notcied that my idle was lower than usual, and it has stayed there for the past two days, with the idle being lower, i can feel the motor a lil bit more at a stand still. could it be because the air recirculator isnt in? the tube isnt long enough to reach it on the intake, so i was gonna get a new tube and connect it, but i just wanted to know if that was even the problem, any assistance would be apreciated, thanks