So out of no where my car starts to idle really weird. The rpm would go up and down. And the car feels like it could shut off by itself anytime. I also checked the couplers and stuff and everything seems to be in place. (Minus the IC area because it's dark right now) Heres a little video of the idle..
Do any of you guys know what's wrong?

-Thanks in advance!

http://www.youtube.com/watch?v=7yoSd...e_gdata_player

 

Check you maf sensor. it could be dirty and cause that.

 

Will do, It was running normal until I got off the freeway..

 

I have read similar posts and so you might search around a bit to learn if others have had the same problem. Checking the MAF is good but it could be a hundred things. How many miles, mods, CELS does it run ok, etc.

 

I only have 20k miles on the car, and as for mods i have the basic bolt ons, UPIC, intake, exhaust, and a tune from road race engineering.The ran ran perfectly fine until I notice it idleing super weird when I hit a stop light.

 

had the same thing before,clean and tighten back the MAF and it works fine.

 

FPR hose, check both ends. In the video you can see one end is connected, the other end may not be.

 

^ this

 

I will take a look today and update you guys! Thanks for helping!

 

I cleaned the MAF and still nothing.. Also the FPR hose is connected to both ends..

 

Fuel relay maybe?

 

I just took it to the dealer and they said it's a misfire in cylinder number 4.. What should I do guys!??!?! =( I'm so stressed out!

 

if it's under warranty, don't worry about it

if it's not the MAF, and all the vacuum hoses are tight, and you have a misfire on 4, that just means a bad plug, bad injector, or loose injector harness, either of which are $20 dollar parts and five minute fix. Maybe fuel relay, but you should upgrade that anyways.

 

Found out the issue, it was the ignition coil that went bad.. So i'm waiting for the part to come in. Once I do I will update you guys!
What brand fuel relay do you recommend??

 

Just the OEM ones, there are like 3 different ones. Here is the link to page 22 of it, its the one with the good diagrams. Just check and see if you have a green or blue fuel pump relay, if so then you are probably good with the relays. There is some parts in the thread below regarding a black one that Mitsubishi will sell, as long as its the bigger beefier black relay, your golden. Make sure you check before you spend the dough. MAP sells a complete relay replacement bundle that comes with 4 total relays, if you are on old relays, its worth it to just buy the Map bundle as its going to be cheaper.

https://www.evolutionm.net/forums/ev...ge-4-a-22.html

http://www.maperformance.com/mitsubi...-relayset.html