2.5

Hey everyone, before I get into my question (which is probably dumb), I just want to give a brief history of my YJ (and my possible routes I can go). I have a 1989 YJ my grandpa bought in 2003. It has 0 rust, a 4 year old repaint, brand new 4cyl (TBI), 30 inch Toyos, new top, seats, steering...

Hello, I am just looking for some advice. So I noticed my '93 2.5l was idling a little funny, so I did a compression test on all 4 cylinders. All ranged between 60-75. I have read that at least 100-120 is optimal. If this is a problem what could it be?