Re: engine code P1110 - help, please - Saab 9-5 Bulletin Board - Saabnet.com
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Re: engine code P1110 - help, please
Posted by LesH [Email] (more from LesH) on Wed, 16 Feb 2011 06:54:10
In Reply to: engine code P1110 - help, please, Val W., Wed, 16 Feb 2011 06:44:33
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P1110 IS the bypass valve, bypass valve controller, or hoses. P1110 under boost (like ascending a hill) IS a symptom of bad bypass.
Just holding vacuum is not a complete test of the valve. It should hold a vacuum applied at the small fitting. Air should only be able to pass between the two large fittings while vacuum is applied at the small one. The hoses that attach to the valve cannot have any leaks. And the control solenoid on the firewall must be connected and working properly.
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