i have a 95 sho auto with 120k i recently changed plugs, wires, fuel filter and the car runs a little better but standing at the rear of the car it really sounds sputtery(the tach stays fairly even though) when at wot around 55mph the car gets around 7k then shifts and about a second later shifts back(seems like its struggling to pick up speed) then the engine light will come on but only after a good ol stomp down to about 70, then after the car is turned off and on again its gone? does this sound like any problem u guys might of had in the past? the cats aren't smelling the air filter looks pretty good. im thinking of taking the throttle body apart and cleaning the heck out of it or changing my cid sensor?