I know this is not the best place but I was hoping to get more help in this section... not to many people check the 200 20v section.My car has an intermittent spark issue... when the car is hot at 1,800 rpm or so it stumbles and drops to like 1,100 then goes back up to 1,800...keeps doing this up, down, up, down. As I continue to push the gas pedal it all of a sudden jumps to where it should be... like 2,200 then revs like it should. The check engine light is on when this happens. Sometimes it lasts for 2 min. sometimes it lasts for 20 min. The plugs, wires, cap, rotor are all new.My thought was the coil or temp sensor. Was hoping someone had come across this before. Please help!

 

anybody??