Resetting the ECU

Alright my friend has a 97 prelude and just got a 3" Hi Flow cat, Huyama Universal Muffler and 2.5" piping running down it. Wondering how to reset the ECU so it can adjust to the new exhaust. Also, while it is idling, it has some white smoke coming out of it. It has a lot of smoke coming out of it when you first start it up ofcourse, then goes down to just a lil bit of smoke once it warms up. I don't think it did it before the new exhaust. Is this anything to worry about?I really don't know that much about preludes, this is why I am coming here to ask you all.

smokw could be paint or something cooking on the piping, possibly an exhaust leakfrom having such a big cat. as for resetting the ECU, the way I understand it is unplug the 7.5A radio fuse under the hood for a few minutes, put it back in, and start it up.

Originally posted by cybercrx00
as for resetting the ECU, the way I understand it is unplug the 7.5A radio fuse under the hood for a few minutes, put it back in, and start it up. That´s absolutely correct! :)

gotta pull the radio fuse? see we tried pulling the ECU fuse and the hazard fuse, because I know the hazard fuse is the one I have to pull to reset my ECU. Alright we'll try that one. Thank guys.