Jump to content

Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, ARE due Dec 6th, 2021. Our current donations have fallen far short of the funds we need to renew. Please remember the RennTech.org community is Member supported so please consider a donation to help...  THANK YOU!

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Carbon Canister Issue


Recommended Posts

Hi There Folks,

 

I recently had to remove my carbon canister from my 2000 Boxster S (3.2L) because I had to remove & replace a smashed AC line running from the front to the rear on the passenger side.  This required R&R of the carbon canister to access the line.

 

Upon starting the car back up I am hearing quite a bit of "popping" coming from the canister location.  It sounds just like a vacuum pump trying to create a vacuum in a system.

 

Is this normal?  Will it go away?  I haven't thrown any codes, and the car is running just fine.

 

Obviously, any vacuum that would be in that system was totally lost when I disconnected all of the hoses in order to remove the canister.

Is it trying to build back up a vacuum in the system?  I don't believe I connected anything incorrectly.

 

Any thoughts?  Ideas? 

 

Thanks in advance everyone, I appreciate your help.

 

Brian

  • Upvote 1
Link to comment
Share on other sites

There are a couple of Evaporative Control System valves for controlling vacuum and shutoff... Could it be the valves you are hearing? I hear mine operate all the time when sitting at a traffic light.

Link to comment
Share on other sites

Well, its coming from the right front wheel well.  I think that something may be loose, I just removed the hoses and reinserted all of them.  We'll see how it goes.  I have never heard these sounds before.  I removed the carbon canister to R&R an AC line, and when I put everything back together, it started making a noise like a vacuum pump trying to pump up a vacuum.  That's the best I can describe it.  I have never heard this sound in either of my 986s or 996.  Its definitely coming from the carbon canister tho. 

 

We'll see what happens now, I am getting ready to restart it now.  I'll keep you posted.

 

Thanks,

 

B

Link to comment
Share on other sites

Apparently, one of the hoses was knocked loose as I put the plastic wheel well cover back in place.  The noise is gone, and the new AC hard line is installed and the AC works, and blows at about 42 degrees, and the carbon canister is no longer making that annoying noise.  It was the canister with the three hoses up on the top, and it was the outermost (against the outside fender) hose that had worked loose.


 


What a mess that board that I ran over ended up causing.  But, its all fixed now!


 


Thanks  Jager for the comment.


  • Upvote 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Content

    • By 06TTS
      Hello everyone,
       
      This is my first post but I have done tons of forum searching and found similar posts but nothing with my same codes. I have noticed a rough idle but once I drive the car drives great and boosts great. Along with the 2 EVAP codes I have P0300, P0301, P0304 and P0308. I have changed the spark plugs and I did a full inspection of the coil packs. The coil packs looked perfect, no cracks or damage and it needed new plugs so I did Beru plugs. In that process I changed the torque arm also because the rubber was shot. That didn't solve the misfire and I didnt notice any wiring issues or connector issues.
       
      Onto the EVAP stuff. I have the two codes P2401 & P0448. Just put a new gas cap on and cleared the codes, they come right back. I also checked the oil fill cap and its seal looks great (no cracks in the oring).
       
      Does anyone have any idea or run into these same symptoms? I have an appointment at my local Indy shop in a few days but would like to go in prepared. They're going to start with a smoke test looking for a vacuum leak.
       
      Thanks in advance,
      Evan
    • By mirzabaig
      Hi, I have a 2008 Porsche Cayenne with a a CEL for P2404. The car runs completely normal and this is the only check engine light code. The only information I found on this is:
       
      P2404 Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance
      Possible cause of fault - Insufficient vacuum (system has a leak or blockage) - Short circuit to B+ in signal line - Leakage diagnosis pump faulty (diaphragm or reed switch sticks, internal solenoid valve stays closed or is blocked) -DME control module faulty
       
      I was wondering if there was anyone with a similar issue or anyone with knowledge of a reported fix. If not, I'm a pretty good DIYer. Does anyone know how I should go about diagnosing this?
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.