Hi i just brought a ce 1.8lt lancer its done 215k after a week of driving it i accelarated pretty quick to get in a gap. The car reved up and then just droped to about 100rpm. and with my foot flat to the floor it took about 2 secs to finally kick back in. Also i realized that when idling is got either a misfire or backfire and a bit of a flat spot first thing in the morning please help