Dodge throwing lean code bank one O2 sensor.

Tried blue devil no more steam which is good but still missing I will also add I un plugged the battery reset computer and when I do this ive done this every time I replace somthing it always runs really bad for bout a week it slowly gets better to where its only a little hesatation when at 1000 -1500 rpm usual during a pull even a slight pull going down hill it wont do it ive noticed Will a idle air control valve do this also will it cause it to run lean when I first got the truck I had to clean it and it was fine but it really affected the idleing not so much the driving once you got going it did fine I have cleaned it again recently and it didnt change anything

Put new 4 hole injectors in wow those things are amazing but still have light on after clearing computer and have small hesitation fuel pressure is good checked just aint tried vacume hopefully tomarrow but suspose to snow here so dont know

Drove it to work started missing ima stop by autozone on the way home check the vaccume thats gotta be it I think it runs to good to be a burnt valve and its just at low rpms it doent do it above 2000rpms

Finally fixed it it was the intake manifold gasket on front left passenger side found it with starting fluid kinda up under behind ac pump sprayed with carb cleaner too it worked too all the stuff I bought it was a 15 dollar gasket and about 5 hours of work it took that long cause I cleand every thing real good not sure if head gasket was leaking or just the crappy fuel you buy now a days cause I was looking the other day and every thing steams nowa days im start just using non ethanol fuel put it my trailblazer the other day got 3 more miles to a gallon and also guess what know steam I think there mixing h2o with the ethanol thats why it steams so bad it would burn to cause alcohol binds with water so the car would burn it then and thats a old trick if you get water in your fuel dump a bottle of rubbing alcohol in your fuel tank it dont take out the water but it will bind with the water and burn better

Thanks everybody id say if this prob comes across again id tell them to check intake manifold gasket reading online I found seems to be pretty common. Again thanks everyone