i have a 94z and the other day on my way to work it started to hesitate upon accerlation at low rpm and speed...when its idiling u can hear a slight miss in the exhaust...also i just did a 6spd swap in it and have noticed it burns more gas now do u think it is bc i havent got computer reflashed yet? any help would be appreciated....i have new plugs, wires, fuel filter and fuel pump installed within the past 6 months too.

thanks