Ok....so here is my Specs. I have a JDM B16a with a LS tranny I believe...In my 91 CRX. I just purchased the car not to long ago cheap. It is having some trouble though. When I first crank up my car for the first time of the day it runs good. I will drive it for probably 10 minutes and thats when the problem begins. When Im going about 45-50 at a steady pace about every 2 seconds my Air/Fuel ratio leans out. I have a Air/Fuel gauge in my car. When the car does this every 2 seconds it sputters...then picks back up and then sputters. If I have the throttle wide open I dont have any problems. If there is anymore details just let me know. Im trying to narrow down the problem. So if anyone as some advice it woud be awsome! Thanks! -ChaD