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ENGINE VACUUM SYSTEM 900 1993

posted by  Papa Al on  Mon Jul 3 10:09 CST 2006
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Thanks for the info. I apppologize for being so late in responding. I have been doing other things. I will save this info in my Volvo File.
I have to digest what that means. One of my problems is that I get lousy milage. I don't think the fresh air going into the exhaust can cause any performance problems but I'm not so sure about the EGR system. What is it that tells the EGR to open and close and under what conditions should it be open or closed? My guess is that it would be at decelleration.

Thanks again, if you are still around






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