hi everyone i have a 98 gsr and i am having a problem my check engine light is on and i scanned it and it said bank one running lean and my rpm r flucktuating they dont go past 1000 rpm but as i am coming to a stop it drops then it goes back to normal and then it goes down again and it feels like it wants to stall. if any one could help me out here cuz i dont know wut to do im beat trying to figure out this problem and i also have a full exhaust system done with a high flow cat. btw my headers have a small crack on them can that be it too

 

plz anyone i need some help here
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