i was driving the other day and the check engine light came on then it started running a little rough. Then I look at the tac and when i hit the gas the rpm don't go higher than 1500. its a 93 2.3 it feels something like a vac leek. its not running completely bad it's not as bad as if a plug wire was off. but its missing enough to know it's missing. put it on the code reader and no codes came up

cheacked
plugs
wire
all vac lines
cleaned mass air flow system
checked air filter