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Evo 9 stalls out problem

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Old Nov 3, 2010, 10:05 AM
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Evo 9 stalls out problem
I know lots of people have this problem but I can't really fix the problem with my car. My car has intake, full turboback exhaust, forge bov and mbc, act clutch, cosworth cams and a full tune. Everytime i drive the car with the a/c on and come close to a stop or making a turn it will stall out on me specially in hot weather or after i beat on it. Anybody ever really fixed this problem on the evos. I know that there were people post this kind of threads before. Any inputs will be appreciated guys. Thanks
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Old Nov 3, 2010, 10:08 AM
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Originally Posted by 240sxzenki
I know lots of people have this problem but I can't really fix the problem with my car. My car has intake, full turboback exhaust, forge bov and mbc, act clutch, cosworth cams and a full tune. Everytime i drive the car with the a/c on and come close to a stop or making a turn it will stall out on me specially in hot weather or after i beat on it. Anybody ever really fixed this problem on the evos. I know that there were people post this kind of threads before. Any inputs will be appreciated guys. Thanks
Your ISCV tables need to be adjusted properly. Also, consider upping the idle more when the AC is turned on.

I had the same issue with my Evo and when I had it tuned, they also tuned my ISCV tables and now when I turn the AC I don't notice a difference at all.


-Bink
Last edited by binky; Nov 3, 2010 at 10:10 AM.
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Old Nov 3, 2010, 10:16 AM
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iac valve gone bad? my 8 had/have similar symtoms
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Old Nov 3, 2010, 10:43 AM
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Needs another "full tune".
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Old Nov 3, 2010, 10:53 AM
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Originally Posted by binky
Your ISCV tables need to be adjusted properly. Also, consider upping the idle more when the AC is turned on.

I had the same issue with my Evo and when I had it tuned, they also tuned my ISCV tables and now when I turn the AC I don't notice a difference at all.


-Bink
This what I need to look into.
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Old Nov 3, 2010, 10:54 AM
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Originally Posted by kim.ry
iac valve gone bad? my 8 had/have similar symtoms
I don't thinks it's bad. Since it doesn't throw out any cel. Plus when I don't have the a/c on, the car runs just perfect.
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Old Nov 3, 2010, 10:58 AM
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Originally Posted by binky
Your ISCV tables need to be adjusted properly. Also, consider upping the idle more when the AC is turned on.

I had the same issue with my Evo and when I had it tuned, they also tuned my ISCV tables and now when I turn the AC I don't notice a difference at all.


-Bink
Do you have cams on your car? And what does ISCV stand for? Because most people I talked to they said because I have cams that's why it does that.
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Old Nov 3, 2010, 11:23 AM
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Originally Posted by 240sxzenki
Do you have cams on your car? And what does ISCV stand for? Because most people I talked to they said because I have cams that's why it does that.
ISCV Idle speed control valve. Not only that table but as mentioned you Target Idle w/ AC on may need to raised. What are the values now??
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Old Nov 3, 2010, 11:27 AM
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I had stalling issues.

See if you valve is cracked like mine was....
https://www.evolutionm.net/forums/ev...ge-my-isc.html
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Old Nov 3, 2010, 11:44 AM
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Originally Posted by gsrboi80
ISCV Idle speed control valve. Not only that table but as mentioned you Target Idle w/ AC on may need to raised. What are the values now??
I have no idea how to tell you that. Is there a way how to open up the Iscv table?
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Old Nov 3, 2010, 11:45 AM
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Originally Posted by 4RETECH
I had stalling issues.

See if you valve is cracked like mine was....
https://www.evolutionm.net/forums/ev...ge-my-isc.html
like i said it only happens when i turn on the a/c. When a/c off the car runs normal.
Last edited by 240sxzenki; Nov 3, 2010 at 04:21 PM.
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Old Nov 3, 2010, 12:10 PM
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Do you have ecuflash sw and a data cable??
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Old Nov 3, 2010, 01:08 PM
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No i don't. I guess I would need help from the professional then. I would love to learn how to do that myself
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Old Nov 3, 2010, 01:10 PM
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I wouldn't mind spending times to learn how to do this
Last edited by 240sxzenki; Nov 3, 2010 at 04:21 PM.
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Old Nov 3, 2010, 01:14 PM
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So what i need is the ecuflash software and the data cable to be able to log on the data?
Last edited by 240sxzenki; Nov 3, 2010 at 04:20 PM.
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