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Replaced wastegate vac lines. Prior to replacing lines the digital boost was working but at times it would only show orange or only show red, or show red before orange which still does. Sorry I don’t know the technical terms. What could be causing this? There was some evidence of oil in the...

All stock 84 GN. I am trying to learn as much as I can about getting and keeping my car running smooth. What is still available that I can use without making significant modifications? Is there such thing as Diagnostic only vs. for tuning? I have had my car for 31 years and finally have...

I see the drawings here but need clarification. Two vac lines on the wg solenoid. I clearly see that one closest to fender goes to the Y near the 2 port wastegate. But does the other connect to a line coming from the vacuum block; a line that seems to have two or three lines and maybe going...

I am a complete novice and enjoy this car because I fell in love with it shortly after they started rolling off the assembly line. All stock and no racing. The car has been stored most of the last 25 years. It runs fine, not great. I am noticing a handful of wire connections disconnected...