Jump to content

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)

Recommended Posts

In the past two weeks my '04 CTT failed to start right away immediately after fueling up. The second time it happened to my wife and coincidently someone at the pumps just happened to have code reader on them. They were kind enough to offer assistance and the proceeding codes were read; P0441, P0011, P2403. Can someone help me understand these codes and prospective trouble shooting I will need to do so as not to leave wife stranded. Thanks in advance


So, as usual due to time constraints I didn't look at codes list on site and rushed to asking forum. I found the codes in the OBD section, so I understand what they mean and I now ask is there anything I need to do about them beyond the reset that was given at gas station? one code was cam position and the other two were emissions related; (system purge flow and leak detection pump)

Edited by gravityalwswins
Link to comment
Share on other sites

  • Admin
P0011 Adjustment of Inlet Camshaft in relation to Crankshaft, Bank 1 – Signal Implausible
Possible cause of fault
- Dirt in oil circuit
- Sealing strips on inlet camshaft adjuster faulty
- Oil pressure too low
- Mechanical fault in inlet camshaft adjuster
- Solenoid hydraulic valve faulty
P0441 Fuel tank ventilation system above limit value/below limit value
There must not be any stored faults for the following systems:
- Oxygen sensors
- Tank valve driver
- Throttle adjusting unit
- Hot film mass air flow meter
- Coolant temperature sensor
- Idle speed control
- Vehicle speed
Possible cause of fault
- Tank vent faulty (remains stuck in an open or closed position)
- Tank vent installed the wrong way round
- Leak in scavenging lines between tank vent and positive crankcase ventilation (in the Turbo via a T-piece also on the intake side of the turbocharger)
- Scavenging lines between tank vent and positive crankcase ventilation trapped or blocked (in the Turbo via a T-piece also on the intake side of the turbocharger)
P2403 Evaporative Emission System Leak Detection Pump Sense Circuit/Open


Possible cause of fault
- EVAP canister purge valve stuck in closed position
- Purge air line between EVAP canister purge valve and active charcoal filter blocked
- Open circuit in signal line
- Short circuit to ground in signal line
- Leakage diagnosis pump faulty (diaphragm or reed switch stuck, solenoid valve stays open)
- DME control module faulty
Link to comment
Share on other sites

MY 2006 CS just started doing this and giving the same codes. Had to floor throttle everytime I filled up fuel.

I was thinking it was EVAP purge valve. I put a clamp on the vacuum line between evap valve and throttlebody then went and filled up. Problem solved.

Have valve on order, around $130 and easy to replace. Note doing this will also cause evap codes but will start every time and run well.

The other thing I noticed was horrible fuel economy.

Link to comment
Share on other sites

  • 1 year later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • 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.