Vapor canister
Thread Starter
Staging Lane
Joined: Aug 2013
Posts: 62
Likes: 0
Vapor canister I am transplanting my ls-1 into my 51 chevy truck. My first question is where is this valve (vapor canister purge valve) routed to ? And will I need it on my set up. Where will it terminate? I'm sure it goes to the vapor canister that I don't have , and if I don't need it what is done with the sensor ? Just leave it or block it? doesn't it work off the vacumn or gas tank vent syatem ?
TECH Enthusiast
Joined: Feb 2008
Posts: 503
Likes: 1
From: Ventura, Ca
The system purges into the intake. It will be the second smaller fuel line on the intake and it is on the drivers side. The tank will have a 1 way intake or fresh air valve and the tank vapors go to the canister. The canister hooks to the purge on the intake. You do not need it but I am running mine. In the past I ran the old canister check valve that is about 1/2 psi which will keep the tank pressurized up to that pressure. I then hooked that to a gas filter to be vented into the air. So on the tank you will see a gas out, gas in, vent out to canister and a vent in or a vented gas cap.
