i have been noticing that there have been alot of people posting that they have a miss at higher rpms and it always seems it happens right after they wash down there engine bays
a few tips that i have gathered for washing it down with out hurting anything are
1. cover up the Coil On Plug's with a rag
2. cover up the altenator with a plastic bag or something similar
3. cover up the air filter with a plasic bag or something similar
4. cover up the battery wit some sort of plastic
5. cover up the fuse box with a plastic bag or something similar
6. after covering up these componants take some degreaser and spray down the whole engine
7.once you have the degreaser on take a finger nail brush or something like that and scrub the entire area
8. when running water over the engine bay make sure the engine is not hot
9. use as little water as possible to prevent water from getting were it can hurt something
10. top it with an engine detailer (i like to use CD2)
here is picture i have circled of the areas that need to be covered in yellow
if anyone has any other tips feel free to share them and i can add them to this
(pic thanks to sitnlopro's gallery pics)