Ok I have a 96 Gsr and I'm wanting to remove my charcoal canister etc. Blah blah blah, ok the purge valve at the top with the two vacuum lines and the electrical plug on it, everytime I unplug it my car kills! Is that wrong? My car is built and turboed and I have s300 as a computer. I want to remove because my lid or cap on the the canister got cracked and now is acting like a vacuum leak and I want to remove the whole system together.
I guess my question is why does it die? I do have a faulty iacv right now as to which I have bought another one and it is on it's way. Would this have an effect on it? Just wondering basically how to remove the whole system!
Thanks for your time.

 

Looking at the manual's description for the EVAP, it's purpose appears to be to capture the vapor which escapes from the tank when pressure builds beyond a certain point. The valve serves to meter the flow of air through the cannister.. I don't know whether the EVAP solenoid goes open or closed when unplugged.

If open, then you're getting too much air -- if closed, then too little.

To test, hold the throttle open a bit (perhaps 1200-1500 RPM) at the same time you unplug the EVAP connector from the solenoid. If RPM drops a tad but otherwise runs fine, then what's probably happening is that the additional air the engine was getting disappears when it's unplugged and all you need to do is adjust idle air.

The other thing you can try is to plug the hose leading to the valve/manifold so that if it allows too much air when unplugged you've solved that problem.

My vote is that it closes completely and your engine just needs idle air adjust.

Good luck - Mark