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)

Fuel Gauge reading

Recommended Posts

Sometimes, the fuel gauge reading on my 2001 Boxster S registers below Full although the tank is brimmed. The pointer goes up to 3/4 of the last 1/4 i.e. little below full. From then on as the tank is depleted the readings are correct. Any ideas please. Somebody suggested OBD calibration, others that the floater in the tank might be faulty.


Link to comment
Share on other sites

  • 3 weeks later...
Give it a try and rapport back after a couple of fillings please.

I tried your recommendation for 3 fillings and it worked fine. I hope it is the solution and not coincidence. Thanks!

Edited by renos
Link to comment
Share on other sites

  • Moderators

With the key removed ( the lock makes a click sound ) all the power is shut off, if you leave the key in the ignition lock, there is power on the contact points in the lock next to the points" ignition on". After several start procedures during the years, there are residues of metal coming from the contact points on the " track" of the rotation disc inside the lock, which is always the same, and conduct a small amount of power just sufficient to disturb the reading.

Link to comment
Share on other sites

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.