Howdy!
does anyone know off hand how to check an ODB 1 , engine code? My 93 ever since i bought it would throw a check engine code if you tried to go up spooner in 5th gear. it would lose speed in 5th so i just always drive up in 4th.
Now it started to get the check engine code in 4th gear. A buddy suspected it could be knock ...

but the dummy method of putting in some 89 didn't make the problem go away (although i got slightly better gas millage somehow)
Thanks