My car has always been somewhat stall prone, even when stock. AC on in hot weather in stop and go traffic = wants to stall. The addition of a really stiff BOV and cams only made this tendency a bit worse.

So, we turned up the BISS (base idle set screw) to 1800rpms at idle. Yes, 1800. The ECU immediately started readjusting my idle back down to 900. Still, this seemed to help somewhat with stalling issues, but may have had some unintended consequences:

Snce doing this, I have noticed my idle up-floating between shifts, and louder deceleration noise. Do you think the BISS is the culprit of my decel noise and floating idle? I noticed some really cool features on v.3 regarding decel control and idle settings. Is help on the way?

 

shoulda bought an STI Hope it gets fixed though.

 

you gotta be kidding me

 

Floating idle- yes
Deceleration noise- no
STi- nevAr!!

 

My evo is also stall prone,going to try the MR BOV once it gets here.

He bought the Evo to go fast... He doesnt want to go slow...

 

Where is a BISS ? just tonite I lossened the two bolt on the throttle cable and move it away from the tb and it seem to bring up the idle to 950 from 850. it this the same thing your talking about or is there another adjustment ?

 

Base Idle Set Screw. Physically located on top of the throttle body.

 

Ill have to check that out , thanks

 

To those that like to make comments about other cars besides the almighty EVO, please use common sense before doing so. That goes out to the ones except for the one guy with the

thank you and have a nice day

bump for an anwer

 

In the past two day my euc also has readjusting my idle back down also (850-900rpm) , also tried the BISS adj , anyone have any Ideas ?

 

Stall prone. You used to brag about how much better your car Idled compared to my prehistoric 1+ days before the Idle fix. With the right spring or BOV your idle is money. Your race setting is a lil stall prone but Tom you can't have a hot chick and expect low maintenance.

 

Drew you know what STI stands for on this board? SLOWER THAN I! Should of named them STE as in SLOWER THAN EVO. OUT!

 

I thought STI stood for sexual transmitted infection.

 

LOL !!!!