Misfire VY ecotec

[DylanR5]

When my car idles it has a misfire and when I rev to about 2000 revs it will stick for a second or 2 and then start to go down I changed spark plugs ignition leads coil packs and coil packs ecu what else could be the cause

 

[Immortality]

Try some injector cleaner, You might have sticky injector causing a lean misfire.