What the Libra zodiac sign is all about: Libra is the seventh of the 12 zodiac signs, which begins its cycle in early fall every year during Libra seasonâwhich falls around September 23-October 22.
How it works. This schematic shows the component parts of a typical leak-down tester. The gauge on the right is held at a standard pressure by adjusting the pressure regulator while the gauge on the left shows an example reading of 85-or 15% leakage.
Posted. After repairing a leak during a boost leak down test I discovered that Air was also bleeding out of the Evap Canister. The Intake has a hose that runs to a Purge valve that is wired to the Ecu.I found this in a service manual. Canister Purge Valve. Charcoal canister is filled with activated charcoal.osted. After repairing a leak during a boost leak down test I discovered that Air was also bleeding out of the Evap Canister. The Intake has a hose that runs to a Purge valve that is wired to the Ecu.