986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - How to remove charcoal canister and not get CEL?

JSG1901 · 11-18-2020, 06:46 PM

I know this is a terribly old thread, but I'm hoping somebody who was in this conversation back in the day may be able to shed a little light on my version of the same question. 2000 Boxster S race car. As were others in this thread, I'm also trying to get rid of as many of these EVAP parts as possible, but mine look a little different than those shown here, AND I don't see any mention of whether or not we need to keep the fuel vapor purge valve.

Here's my whole system:

https://live.staticflickr.com/65535/50618552528_4108b2dbc3_b.jpg

Here is a close-up of the purge valve:

https://live.staticflickr.com/65535/50619291511_a72a2052e7_b.jpg

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

https://live.staticflickr.com/65535/50619399242_e360dc3cd8_b.jpg

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...? 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!

11-18-2020, 06:46 PM	#44
JSG1901 Registered User Join Date: Jul 2016 Location: Charlotte, NC Posts: 4	I know this is a terribly old thread, but I'm hoping somebody who was in this conversation back in the day may be able to shed a little light on my version of the same question. 2000 Boxster S race car. As were others in this thread, I'm also trying to get rid of as many of these EVAP parts as possible, but mine look a little different than those shown here, AND I don't see any mention of whether or not we need to keep the fuel vapor purge valve. Here's my whole system: https://live.staticflickr.com/65535/50618552528_4108b2dbc3_b.jpg Here is a close-up of the purge valve: https://live.staticflickr.com/65535/50619291511_a72a2052e7_b.jpg And here's a close-up of the charcoal canister: https://live.staticflickr.com/65535/50619399242_e360dc3cd8_b.jpg 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...? 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! Last edited by JSG1901; 11-18-2020 at 06:53 PM.