hello,
I have found a 98 cherokee that I am thinking about buying but it has a couple of check engine lights on it.

first is P0171 - the Air / fuel mixture is too lean

P0700 - Auto Tranny computer problem

P0720 - Output shaft speed sensor doesnt match reported vehicle speed.

This jeep has had the T-case replaced, according to the owner. could that be the cause of the 3rd code? maybe the 2nd?

are these big time expensive fixes? or are they easy fixes?

please help me asap I need to make a move on this thing because it is priced very good.

thanks alot.