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I rechecked my notes. The pot has 15 turns to it.
If the test point voltage constantly reads high (no LED), the mixture is lean; constantly low (LED on constantly) is rich.
Turning the pot clockwise makes the mixture richer; counter-clockwise is leaner.
If you hook up the AMM tester between the test point and 12 volts, there is still 2 ways to connect it; try swapping the test point wires between test point and the 12 volt connection. If the LED is connected the wrong way, you will never get it to flash.
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David Armstrong - '86 240(350k km?), '93 940T(270k km), '89 240(parts source for others) near Toronto
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