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)

Engine stops running after 15 minues

ron.in.irvine
 Share

Recommended Posts

ron.in.irvine Member

ron.in.irvine

Posted
Posted

1997 Boxster, auto transmission, 116K miles.

Drove perfectly running Boxster to the hardware store, spent a couple of bucks, and returned to find that it wouldn't start.  Starter motor turned and engine turned but wouldn't fire.  Instrument panel worked, headlights worked, etc. 

 

Took a couple of hours to get it transported home and found that it then started immediately.  Left it alone until the next day and started it again on first key turn.  Discovered that it would run for a few minutes and then stop without showing any warning lights or showing codes on my standard OBD2 tester.  Just stopped running and wouldn't restart until cool.  Appears to run at idle for roughly 15 minutes before stopping, a lesser time if being driven, or apparently until nearing operating temperature.

 

Various forums suggested fuel pump, or ignition switch, or various fuses or relays.  Changed fuses indicated as being part of fuel or ignition systems.  Same symptoms.  Changed some relays.  Same symptoms.  Changed electrical part of ignition switch.  Same symptoms.  Changed fuel pump.  Same symptoms. 

 

Problem appears to be related to some component warming - but which component?  Thoughts any one?

 

Ahsai Member

Ahsai

Posted
Posted

When it happens again, see if the tach needle bounces for about 1/8" or so when you are cranking. If not, it's likely the crank position sensor.

  • 4 weeks later...
Schnell Gelb Member

Schnell Gelb

Posted
Posted
On 10/22/2017 at 4:04 PM, Stefano Buganza said:

Many years ago it happened to me because of a problem with an exhaust: when hot, it nearly closed, and car didnt start until cold. Hope this could help.

This is actually a Catalytic Converter fault usually - not muffler/exhaust pipe. The 'brick' melts &/or gets plugged with carbon.

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
 Share
Go to topic listing
×
×
  • 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.