Thouse of you with 225s and boost gauges, please confirm what your car idles at.
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AudiWorld Super User
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Thouse of you with 225s and boost gauges, please confirm what your car idles at.
Mine idles at -16 to -18 (mostly at -16), but as per some posts on the board others noted values closer to -20 and as low as -22. Can anyone please confirm what the idle should be? I wonder if I have another leak. Also, I noticed that when stereo is on the vacume readin goes up a notch. For example: yesterday I was standing at a light and noticed my gauge show vac at -18...when I turned my radio on vac reading increased to -16. I'm guessing extra current draw effects the alternator and hence puts more strain on the engine at idle...just never thought I'd notice it on the gauge.
AudiWorld Senior Member
Joined: Nov 2005
Posts: 1,560
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From: Centerport, NY
I idle at -19, I think -20 is no leaks, and mechanical boost gauges are all a little bit inacurate..
at least from what I hear. They will be off +/- 1. goto homedepot, grab a friend with an aircompressor and do a pressure test.
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