StockD15b

take the coil off, move it to another cylinder. is the misfire follows the coil you kno its bad. if it dosent, and u said u changed the plugs. could be the injector.

liljojo4711

how do u change the injectors? they are under the coil correct?

i have changed my #7 coil twice and it keeps failing after about a week of normal driving. my idle is all messed up as well. sputters from 600rpm to 700 to 500 to 550 to 400 to 700 etc....

StockD15b

your'll see the fuel rail (silver in color) the injector is just pressed in. 2 small nuts hold the fuel rail down. your IACV could also be causing the odd idle. take it off n clean it