the car is a 98 , 30,000 miles on it, it use to have a supercharger and vtec controller on it, when i bought it, the car was returned back to normal but had the engine light on since i owned it, i have since then put a vtec controller back on it, hoping i would be able to tune the car back to the right enrichment. but i am afraid to play with it to much since i am not able to get to a dyno right away. i have been driving like this for about 5000 miles or so and i am just worried my vavles are taking a harsh beating, not too worried about the idel, but the richness of the car bothers me, plus i know i am lacking hp running this way. i just wish there was a scope or something i could use to locate this problem in my electrical system?