FoxPancho

Need some help. Got a 95 3.8 mustang, my first car that I plan on keeping as long as I possibly can. A few years ago a did both head gaskets cause I blew the driver side. Did everything right which was crazy cause it was my first time doing engine work like that. Even had some old timer mechanics look at it and said the work as good. Here's the problem, throwing engine codes for banks 1 and 2 being lean. I sprayed that special MAF cleaner on the little sensor. Changed every possible sensor I could from coolant sensors all the way to o2 sensors. Put in new injectors that are 15lbs (isn't stock for 95 v6 like 14 lbs?). Also when I did the head gaskets, I took the heads to a machine shop a auto professor at the community college I was going to told me about. Had them check for leaks and put new valve train. I've changed everything I can think of. So now the engine is sitting on my stand waiting to be "fixed". Might just say eff it and do a 4.2 swap. I just want my baby running again

FoxPancho

Also, shouldn't I be throwing a rich code instead of lean since my injectors are 15 lbs instead of 14? I'm just really really lost