I got to my EVAP system today.
There were some weird plants in the way that I had to work around. Lol
I got the two-way valve and CDCV off.
The two-way valve was full of crap.
It did seem to operate properly though.
I could blow and suck through the big end then when I plugged the smaller end I could only blow.
The small end I could only blow through and couldn't suck air from.
You don't need an SST to put air through it, you just blow through it. (Just don't spend the whole day huffing on it though, it may have been full of gas. lol)
Then I managed to get it apart.
I actually managed to get it back together without breaking it.
Next was the CDCV.
I put power to it and it didn't work. It was trying but it didn't move so I took it apart too.
What a rusty piece of crap.
The plunger was completely rusted and seized.
I tried to pull and rotate it with pliers but it wouldn't budge.
Then I thought I'd pull apart the connector.
I just cut the wire when I removed it because I couldn't see how the clip works.
You just squeeze it with pliers like this to release the lock, then pull.
It looks pretty good in there. The seal did its job.
I forgot to take a picture before I took things apart so I took a picture of my DD.
I'm almost positive you can simply remove this vent tube and blow through both parts to check for a blockage.
Blowing through the CDCV port checks for flow through the CDCV (in case it's stuck closed) then the air filter (in case it's plugged with dirt or gas) then the two-way check valve (in case it's plugged up with crap or has failed).
Blowing through the vent tube checks the charcoal canister for blockage.
I did find that the air you blow pressurized the gas tank and it came flowing back out so I did actually blow up my gas tank. lol
There is also an anti-backflow valve in the filler neck that may be stuck, preventing you from filling your tank.
One guy posted that he simply removed his then he could fill his tank again.
Maybe inspect that after you check the other stuff because you have to remove your filler neck to get to the valve.