hello everyone.
i have noticed that while in park if i rev engine normally(1500-2200rpm) then let off the throttle, when the rpms come back down they drop to about 500-600, the engine will "stall" for a split second, the interior lights will flicker, then rpms come back up to normal idle range (750-900rpm)
i would like to know where to start looking to solve this problem. is it deceleration fuel cut off?
i havent done a log of this situation yet, but i will attach my tune file
could this be a vacuum problem? the cam is a 107 lsa.