Evo's recently started having idling problems, it hangs around 800-1000 RPM's but occasionally it drops down to 100 and dies. I notice when I take the car out of gear the RPM's drop down more often to around 100-200 RPM's. I'm wondering if it could be a bad MAF sensor or the car just needing a tune (hasn't been tune yet). I'm scheduled to go in for a tune in about a week and a half and want to make sure that there aren't any hidden complications. Thanks everyone!

Current Mods
Greddy TIC Comp TBE(recently installed)
ETS Intake (recently installed)
Muse o2 Dump(recently installed)
Hallman Pro MBC set to 7lb's till I take it in for a tune (recently installed)
Evo IX diverter valve

1st video, after I push in the clutch the RPM's drop down to 0-100.


2nd video, after i push the clutch in rpm's drop and it dies.


3rd video, UPDATE replaced the HKS SSQV with a Evo 9 Diverter Valve and now its idling worse than before..

 

If you still have the stock Recir valve, try it and see if it makes any difference.

 

mite sound stupid, but make sure u dnt have ur bov on backwards, mite sound kinda dumb but mine was on backwards when i got it from the dealership and i didnt knw ne better, and it caused this same issue, also, do a boost leak test, vac lines behind the throttle body will cause this issue as well

 

Alright, I'll check it out when I get home. Do you think this idling issue could be caused by having those mods without a tune?

 

Check for any Vac leaks. Does it do this with a/c off as well or only on? I had similar issues, changed my IAC, took it to my tuner, and it ended up just being a vac line on the back of the IM.

 

It's a bad idea to have all that done without a tune!

 

Does it while the AC's off, It starts up fine with a steady idle. The only time it's really dropped is when i'm rolling and push in the clutch to take it out of gear. I'll post a video, it's easier to show than explain. "IM"?

 

sounds like your ISC either needs cleaning or changing! This is suppose to maintain idle speed when in neutral(clutch pushed in) or extra load added like A/C turned on!
Start it with the A/C on and see what happens.

 

Anyone have anymore advice regarding my issue?

 

New video...