Put in a cold air intake and the car ran fine after that. (shouldn't be the problem)

Replaced the front 3 spark plugs because one seemed broken.
Now after replacing them my car will hardly accelerate you hear backfire from the exhaust, and it idles very rough.
I got spark plugs specifically for my car and I don't think you can gap them.
When I pulled the middle one out it was stuck on the inside and took a lot of force to get out.
Now after replacing them my car will hardly accelerate and you hear backfire from the exhaust.

Anyone have any ideas on what is causing this?

This post was edited by XxRadiationx on Jun 12 2013 06:13pm

year / make / model

?

2001 mitsubishi eclipse gt

pull the plugs out and check if u fucked anything up

Well what would I have fucked up? theres nothing to gap so I have no idea.. have the wire going to the right spots

well did it run fine before u pulled the plugs?

yeah

something must of went wrong when u were doing your plugs, cant hurt to pull them out.

check to make sure you got the wires to the right plugs