I'd have to have a look. Many s13 guys have blocked their pipes, and found the valve to be blocked too. some have had tanks explode, dumping all their fuel on the road.

So it looks like a valve, about half size of film canister? In the purge line near the tank if it's not in the canister itself?

all newish cars will have one someplace, sometimes they are built into the carbon canister..

Have a dig around at the wreckers.

Have a CA engine fitted with the required charcoal canister and a line to the rear for purge.

I have a 6mm barb on the top of the tank for purge/fumes but what stops the fuel comming up this line.

I hade a look at the CA18DET manual and in the diagram it has a fuel check valve at the tank on the purge line.

I assume this stops fuel comming up the fuel line?

If so where can you get one of these valves???

Cheers Guys and Girls