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Discussion Starter · #1 ·
Hey guys, I have a low vacuum, about 12 hg but yet I am still boosting normal and have a normal idil. Any ideas?

Thanks,

Mike
 

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The engine doesn't go into boost until it's under a load. The turbo won't affect anything (like at idle) until the load is increased. The turbo boost is limited in first and second gears to avoid blowing the transmission. So, more information is needed... Ron
 

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Discussion Starter · #5 ·
My fault for not being clear enough, at idle before about three days ago I was getting between 16 and 18 hg of vacuum. Then one day I start the car and I am only getting about 12 to 11hg, I figured it might be a boost leak but when driving the car I still boost and hold boost like I did before. Also I dont have a ruff idle or anything when in park or drive. I have a 96 900 auto with GS stg one tune.

thank you

Mike
 
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