Hi,
I'm about to remove the charcoal canister from my CRX, and I was wonder if I should place a one way valve on the breather hose from the tank, to let the fumes out. but not take air in.
Wouldn't leaving the nipple at the firewall free-to-air be a vacuum leak (since it's behind a 2-way valve)?
Or isn't there supposed to be vacuum in the fueltank?
I was under the impression that the charcoal cannister was in a closed loop, so there had to be vacuum in the fueltank. But then I noticed another hose, on the bottom of the charcoal cannister (which doesn't show in the vacuum diagram). So it pulls in air that way?
I'm about to remove the charcoal canister from my CRX, and I was wonder if I should place a one way valve on the breather hose from the tank, to let the fumes out. but not take air in.
Wouldn't leaving the nipple at the firewall free-to-air be a vacuum leak (since it's behind a 2-way valve)?
Or isn't there supposed to be vacuum in the fueltank?
I was under the impression that the charcoal cannister was in a closed loop, so there had to be vacuum in the fueltank. But then I noticed another hose, on the bottom of the charcoal cannister (which doesn't show in the vacuum diagram). So it pulls in air that way?