Have you not used the procedure I described in post #17, it will save you a lot of hassle.

 

I also got this problem...and my car has stalled out during turns and coming to stop lights.

 

a friend of my had the same exact issue. he replaced his plugs and that fixed it. you can try that if you are due to replace it.

 

Plugs have been replaced twice. It's not the plugs. and grayw I'm going to try your method out just seems like a lot of others are offering solutions as well so Ill start basic and move from there.

 

could be vacuum leak..

 

I'm a mechanic and my shop has a snap on scanner called MODIS. Had a similar issue with crappy rpm's. Put in plugs and no change. Threw it on the scanner and was able to find a lot of TSB's from mitsu for throttle body and injectors. The scanner might be like evo scan. I dunno. But it let me shut down injectors one at a time while car is running. Found out #4 was lazy. Replaced it and its been smooth since. Not saying it will be the same for you but if you can get access to the scanner its got a lot of useful dealer TSB's on it.

 

Check your fuel pressure and pump. If it stalls when your car jolts then it could be clogging up in the tank which would stall it. Good if u can drive with scanner giving u real time feed so u know what failed when it stalls

 

might be a sign of a bad battery

 

Injector's could explain this problem. Anyone with an aftermarket setup having this same issue?

 

Is there an easier way to check the injectors. Without that scanner.

 

I know that thing was 5K just for the scanner. Well I haven't tuned my evo at all so haven't tried logging with evo scan but if u can get a read on injector pulse width. Measured in milliseconds. If one has strayed from stock timing that could give u an idea but the ecm could come into play then. Its hard to say that it can be one thing without seeing the car. Sorry probably no help at all lol.

 

Im running BlueMax 1350

 

Well, I put in a different IAC and it didn't change anything. I think I'm going to check the battery next.

 

I really don't think the battery is the issue...Mine is practically brand new

 

Unless it's setup as per the instructions just changing the valve won't do any good. There is a reason why both MUT and Evoscan have the facility to set the base idle correctly. If you log the number of ICV steps at idle in Evoscan it should be no more then about 70 if the ICV is set correctly.