When does the EVAP cannister vent?

[miden]

I searched but I couldn't find that tidbit anywhere. I'm getting a '91 Talon AWD together such that it will pass emissions & run correctly. I've got some problems due to the AFPR or bad fuel pump install, but when I start it and rev it, I can smell gas coming from the vicinity of the battery/throttlebody. I have reinstalled the EVAP cannister and all the associated vacuum lines (correctly, the best of my knowledge...) but I haven't done the hose that runs from the purge valve to the intake yet.

Like I said, the gas smell is only present when I rev from idle. Could it be the EVAP venting or is it more likely something else?

Thanks,

-M

 

[miden]

Link courtesy of ElFroggo:

http://dsm.dejonpowerhouse.com/edit/1-02_faq.htm

Do I need the charcoal canister tube on my new intake pipe?
What is the large hose going to my stock intake pipe (coming from under the battery)?
It's the hose from the charcoal canister. The charcoal canister stores fumes from the gas tank until the car reaches about 3000rpm when a valve opens to send them thru the hose to the intake. At idle and low rpm, the purge valve is closed keeping them from affecting idle.