[wvxr7cougar]

I recently purchased a 1994 ranger 2wd 2.3l 5sp to replace my 1989 ranger 2wd 2.3l 5sp. My old truck runs much better than the 94 even though they have the same engine/trans combo. The 94 will not climb hills as well and I am always shifting compared to the old truck.

The 94 has a slight miss that can be felt under load, like climbing hills but idles smooth. The check engine light is not on. I did a fuel pressure test and ran the codes but nothing comes up. I also replaced the plugs even though the ones in it were recently replaced and looked new with no carbon buildup or discoloration. I am thinking it could be a egr problem, coil problem, or o2 sensor. I don't want to go out and just buy parts without any results.
Thanks in advance for any advice.
John