wondering if anyone else's car happens to run better when in open loop. when i first start her up and i tap the throttle, the engine revs quickly. after a few minutes of warm-up, if i tap the throttle again, it seems as the revs don't climb as quick. i don't go crazy with the amount of revs, just when i'm under the hood listening for anything wrong or leaks. should there be a big difference between the open loop and closed loop?