Skipping Hummer h2

[Yetti]

well I have to assume a lot here. first off is the engine making any odd noises when the skip/miss happens? if it just dies in corners and then re starts then I would be looking at a short of some kind. H2 are famous for having bad ignition switchs. like if it does it on right turns and not lefts the weight of your key ring could be causing it.

as for no engine codes I would look at fuel pump drop out or ignition. the best way to check your coils and plugs is to squirt water on them with a two liter pop bottle with a hole in the lid. water down each one while its running to see if it misses when wet. if you can pin point it you can probablly fix it easy.