Menu toggle

Cayman 718 GPF Failure

Hi Everybody

Without Prejudice

Last week I had a chance to run a 718 Cayman GT4 on a dyno , and look closely at the GPF information it provided.

When looking at the information, it shows more aligned actual exhaust GPF temperatures, not calculated, as in the 2.0 and 2.5 vehicles.

To back this up, these cars have a exhaust temperature sensor fitted into each GPF.

Our cars don't have this sensor, could this be contributing to our problem.

After all the engine ECU needs a good accurate exhaust temperature to start a regeneration to burn this soot off and leave a small deposit of Ash in the filter.

I have always thought that if these cars do not carry out a good temperature regeneration, then that could lead to excessive ash deposits.

If I put damp wood in my wood burner and its not hot enough, I get lots of Ash.

All this is providing, these GPF filters are indeed blocked at 100%.

Enclose photo of the exhaust temperature sensor fitted to the GT4.

I will post out more information of the tunning company who invited me to check their car out in a future post.

These guys specialise in Porsche power upgrades.

Dave
 

Attachments

  • Screenshot_20241024_120209_Messages.jpg
    Screenshot_20241024_120209_Messages.jpg
    934.9 KB · Views: 1
Out of interest, on the 2.0 and 2.5 engines, do you notice a rise in oil temps when on a ling journey and on the motorway?
 

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Back
Top