engine flooding after replacing bad injector.. help

[emayearecee]

The other night my car was had a rough idle and not very much power so i disconnected then reconnected the injectors one by one and found the problem injector. I replaced that and now i cant get my car (stock kade) to start unless i pump the gas while cranking it and when it does start a bunch of weird smelling smoke comes out of the exhaust and when I take the injector off that I replaced it sprays gas from the injector hole (sorry for the lack of technical terms).

I did my research and I found that I might need to clean the MAF and IACV and check the o-rings on the injector... is there anything else I should look out for to fix this problem?

Synopsis: changed injector now engine floods and wont start unless gas is pumped then runs but stalls or barely runs at idle with weird smelling smoke coming from the exhaust. anything to check besides MAF IACV and injector o-rings?