I went to get my inspection done today on my 2001 insight and the tell me the check engine light must of been disconnected by the guy i bought it from. They continue to show me that when i turn the key on no check engine light lights.... very messed up. Anyways turns out my upper catalytic converter was bad so i had them clean it out and move the sensors to the other converter, and while i was under the car i decided to have them remove the sound suppressor and the Muffler and the itty bitty exhaust pipe that runs only from the second catalytic converter all the way back,, They installed the 2.5 inch pipe NO MUFFLER and a large tip on the end... Sounds pretty nice, and i increased my response on the engine. However I am still wondering how i can get that dang Check engine light to work again. All the codes that it was throwing are now gone but it just bugs me that the light does not work. Please advise.