Nipple Underneath the intake manifold - Saab 9000 Bulletin Board - Saabnet.com
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Nipple Underneath the intake manifold
Posted by Bill Homer [Email] (more from Bill Homer) on Fri, 4 May 2018 13:45:10
In Reply to: Underneath the intake manifold..., Steven Mitchem, Fri, 4 May 2018 12:16:25
My guess: There is a brass nipple where the idle air control valve connects to the bottom of the intake manifold. These typically loosen up and allow extra air into the intake, and also limit boost through the leak. Fix is to clean it up well and use some JB Weld to glue it back in place. However, I would expect the mixture to go rich when you "get into it", but maybe the manifold pressure sensor is limiting the gasoline.
posted by 207.229.147...
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