a few weeks back while driving my car out of the blue while sitting at a stop light my car starts idle surging, thinking it was my tps i replaced it. i have done much searching and have adjusted the tps and even idle screws on the TB but no matter what i do it still surges. it is surging between 2500 and 3000 rpms and no matter what i do it will not idle below 2000 rpms and will not STOP surging. i do believe i have a leaking injector but i know there are no vacuum leaks. ANY HELP IS GREATLY APPRECIATED!

 

need a mod list

 

mods are HKS Downpipe,Hks exhaust, aluminium ast, intake, silicone hoses, HKS SSQBOV and koyo radiator

 

Bump

 

How do you know this? Check all lines around the idle control area, electrical and vacuum. Also check your map sensor.