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Old 11-20-2020, 05:37 AM   #1
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Join Date: Jul 2016
Location: Charlotte, NC
Posts: 4
Removing EVAP components and charcoal canister...?

I also posted this at the end of a long-dead thread, but I'm trying again here for better visibility.

I'm hoping somebody may be able to shed a little light on what I can and cannot do with regard to removing the EVAP system components from my 2000 Boxster S race car. In the interest of simplification and weight loss, I'm trying to get rid of as many of these EVAP parts as possible.

Eight or more years ago there was an extensive discussion on this topic, but my parts look a little different than those that were shown at the time. Also, and importantly, I can't find any mention of whether or not I need to keep the fuel vapor purge valve and related components.

Here's my whole system:

Here is a close-up of the purge valve:

And here's a close-up of the charcoal canister:

The letters on colored backgrounds show the various hoses and wires and are the same on all the photos for easy reference.

Here's what I think I know...

1. A, B, and E all go down toward the gas tank.
2. B seems to go INTO the gas tank (I can hear bubbling if I use compressed air in it).
3. C seems to come from the purge valve to the charcoal canister.
4. D comes from the gas filler "cup" in the fender, and down into the purge valve.
5. E goes between the purge valve and...? Not sure. Maybe the gas tank. I can't tell where it ends up, nor which way the flow may be.
6. F and G are electrical connections on the purge valve.

My questions:

1. Do I have to keep the purge valve, or can it be removed, too?
2. Either way, which of these parts do I need to keep (and/or connect to one another) and which can I remove?

I've tried blowing air down all these hoses and, so far at least, I haven't been able to hear anything at the back of the car...but I may need to have an assistant help me with that.

Any help you may be able to provide will be greatly appreciated. Thanks in advance!

JSG1901 is offline   Reply With Quote
Old 11-20-2020, 07:26 AM   #2
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Join Date: Dec 2016
Location: Clifton, NJ
Posts: 971
to my understanding, if you don't care about the check engine light, just create a vent off the filler neck with a ball valve and that should be it.

Quadcammer is offline   Reply With Quote

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