i just installed a new skunk2 throttle body and intake manifold in to my 98 civic ex. and now my idle starts at 4000rpms and then after a cuple seconds it will die down to1 n half and then the rpms wuld go up and down and dont stop. i duno wat is wrong wit it. but theres a hole in the throtlebody and when i plug it with my finger the rpms wuld get normal at about 900rpms and idle. so now i put a piece of duck tape on that hole and punched a few holes in the duck tape so it breathes a lil bit and the idle now stays at about 600rpm. i dont want to be using tape or any of that ghetto **** so wat shuld i doo!!!! pleaz help

 

https://www.hondacivicforum.com/m_385952/tm.htm

In my first post theres a list of things you'll need to check out. Does the new TB have an FITV on the bottom? If so, you'll probably have to adjust that, check this link out

IDLE SURGE TROUBLESHOOTING

 

there is no fitv on my skunk2 throttle body

 

Alright, then you need to run down the rest of the options then