I have had my Prelude for over 2 years now with zero problems. About 4 months ago my check engine light came on. I took it to advanced and downloaded the codes. I found out the idle air control valve is going out/failing. Well i didn't have the cash to buy a new one and not one junk yard in all of Memphis had a prelude like mine. So, I waited. Now my car will not go into first, second , third or forth gear. I suspect the trany is going out. It has 150k miles on it and is a automatic. I can go into reverse no problem. Has anyone experienced this issue? Would the IACV cause this?

Thanks,

edit: some grammar