ok, I got a 92 4 door civic with a d16z6 in it. It's a bone stock motor other than a header. It's gotten to where it'll slightly miss when it's idling and not heated up all the way yet, but after it warms up, it seems much much better on idle. But when I'm driving along and I just barely put my foot on the gas, it misses and sputters a little bit. It's only like the first 1/2 inch of throttle, after I get past that first 1/2 inch, it seems to get better. I'm also only getting around 25 mpg. It's got the stock tune, recently replaced plugs, wires, fuel filter, and cleaned the throttle body and iacv. Not sure what else to do. Could it be injectors? Need some ideas please.