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New to posting so please let me know if this is the wrong place.
I have an 06 Sti and the middle gauge (Picture below) always seems to be sat at around .6 and .8.
I am not actually sure what that gauge is for other than it says pressure, but some days it seems to sit a little lower and the engine feels a bit more responsive. Not sure if this is just a coincidence. If anyone knows what that one measures and if I am just being a bit crazy with it sitting high any help would be great!