And I don't even have a Turbo. The gauge says I do though! Something isn't right. I'll read the instructions again. I installed the vacuum line between the carb and distributor, and I get a PLUS reading. Any ideas what I did wrong? It's a no-name cheapie from China, with horrible English installation instructions. The little switch is to cycle through the 7 colors of the LED dash light. I opened up the gauge today, and the needle is moved by real mechanical movement of a sensitive copper tube.
I goofed! Wrong place to hook it up. Should be off Manifold Vacuum: http://www.secondchancegarage.com/public/186.cfm I knew I didn't have a turbo, YET!
Good info on Having a Vacuum Gauge, even on a real turbo-equipped car. http://ecomodder.com/forum/showthread.php/tach-vacuum-gauge-installed-6573.html
I was changing bulbs and testing circuits, etc. yesterday, so I swapped the vacuum line to the main vacuum line to the vacuum reservoir cannister manifold. It works good now, but like I said before its a cheap Vacuum/Boost gauge ($10.00 with taxes), and does all the vacuum needle display on the 'Boost' section. But it works fine. No bouncey needle movement. Stays around 19.5 inches at idle. Might take some colored markers to mark off the economy ranges.
