I have a 95 honda civic ex with a d16z7 with manual tranny. im new to civic platform and in need of help. My car all of a sudden while at idle or driving at low gears the rpm's go up and down on their own and car ocasionally dies. I thought it was the car needing a tune up so i changed plug wires radiator cap rotor and have even messed with the timing and it is still dooing it. Is there something that im missing?