All right.. I'm going to describe what happened and make it as short as possible. And I do appreciate any info and feedback..i recent purchased a 1997 cobra.. I used to own it .. I sold it . And recently bought is back.. when I bought it back it was throwing codes p0174 p0171 lean ... causing it to die out at idle after about 5-10 seconds..i rev the engine to keep it from dying .when I drive and it's moving .. it's fine... also another code for the exhaust ..the car does have a off road xpipe.. no cats.. So that is why I got the one code..as far as the other codes I'm trying to figure out where to start.. I hear people say it's the MAF.. vacuum leak.. etc.. I want to try and narrow it down before I start replacing a bunch of things . I one thing I noticed was that the car is a little more louder .. I think I might hear a exhaust leak.. would that cause the codes? And cause it to die at idle ? Or is it a MAF? I still have the stock one... I did spray carb cleaner around the engine for leaks . Really didn't find anything. Only performance things done to engine is CAI... and msd coils...am I missing to check anything? Any help would be appreciated .. Please help.. thank you