Hey guys, I'm new to the forum here & was wondering if anyone can help me out . I am getting a vac gauge reading of approx 22 or 23, is that normal? The car is an 88 626 turbo auto trans and idles like hell. I'm not use to the digital dash & it's reading 3 bars in the yellow so I'm guessing 750 rpm? When I checked the timing with the light the mark was jumping all over the place. It also looks like someone has been playng with the forbidden adjustment screw on the throttle body. Any help would be appreciated, I haven't been getting any responses on this forum