my wife,s 1992 S-10 blazer is throwing a code 44, my neighbor read it for me so the question is how do I fix a code 44- oxygen sensor or circuit - lean exhaust detected, vehicle has 159,000 miles and wife won't part with it so help please

 

you`ll need a new o2 sensor. they`re on the exhaust. not sure if you have 3 or not. they can be a little tough to get out if you dont have a torch to heat up the bung hole first