Wont idle/Runs rough when warm----Evo 4
Thread Starter
Newbie
Joined: Apr 2016
Posts: 8
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From: Regina, Sask.
Wont idle/Runs rough when warm----Evo 4
Looking for some suggestions.
I have a 1996 Evo 4 that wont idle and runs rough once it warms up. When cold it runs and idles good. I am planning to do a boost leak test within the next few days. I am wondering if there is anything else that may cause this? Should I be concerned about seals in the turbo?
Any help is greatly appreciated!
I have a 1996 Evo 4 that wont idle and runs rough once it warms up. When cold it runs and idles good. I am planning to do a boost leak test within the next few days. I am wondering if there is anything else that may cause this? Should I be concerned about seals in the turbo?
Any help is greatly appreciated!
Evolved Member
Joined: Jun 2006
Posts: 6,902
Likes: 151
From: Grand Island, NE
This a off the wall but the DSMs and older Evos up through the first 8's had a wax pellet device in the throttle body that assisted the IAC in controlling air intake. If this is broken it would affect idle only.