When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Our issue is NOT tune related, please do not spread false information. This issue has been seen on cars that are completely stock, including our own car before it was tuned. We have also run three different fuel types and 5 different tunes, including the stock tune. This is a problem specific to the S cars and their turbocharges which has been acknowledged by Porsche themselves. The base car, S and GTS all use different turbochargers and this is only seen on the S from our experience and speaking with several owners around the country. We get calls and emails weekly about this
I’ll add another datapoint from personal experience that a stock S can suffer from limp mode under some circumstances. And adding the center radiator, while it may be somewhat beneficial, does not solve the issue.
I’ll add another datapoint from personal experience that a stock S can suffer from limp mode under some circumstances. And adding the center radiator, while it may be somewhat beneficial, does not solve the issue.
This is correct. We noticed an immediate decrease in temps on the Accessport with the 3rd radiator but this did nothing to solve out limp mode issue. We still highly recommend the factory 3rd radiator kit even for daily drivers
__________________ SuncoastParts.com Your #1 Source for Genuine Porsche Parts and Accessories on the Web!
Suncoast, thanks for the clarification. This is a long thread and this is the first time we've heard about the cause of the limp mode (apart from heat) and that it is also a problem on the non-tuned S cars.
I'd be interested in hearing about the difference between the servomotor/turbo design on the S vs GTS. Although I understand the GTS turbo is minimally larger but the intake manifold is redesigned/larger so maybe the solution is with the modified intake system on the GTS?
Suncoast, thanks for the clarification. This is a long thread and this is the first time we've heard about the cause of the limp mode (apart from heat) and that it is also a problem on the non-tuned S cars.
I'd be interested in hearing about the difference between the servomotor/turbo design on the S vs GTS. Although I understand the GTS turbo is minimally larger but the intake manifold is redesigned/larger so maybe the solution is with the modified intake system on the GTS?
We actually discussed this a bit back in October 2019 when we found out about it. At that time we did all of the underbody modifications in hopes that they would help us out. Since then we've only had one flawless weekend out of four I think.
This is the document Porsche released on their internal network and shows that code P1254 would pop up, and we have seen that several times in our Cobb Accessport. This is not really "public" information and it's buried away in Porsche's document repository.
We do know that the Boxster models and 911 Turbo models use a certain same servomotor and the Cayman models and GT2 RS use a different servomotor. Not really sure what that means though
We actually discussed this a bit back in October 2019 when we found out about it. At that time we did all of the underbody modifications in hopes that they would help us out. Since then we've only had one flawless weekend out of four I think.
This is the document Porsche released on their internal network and shows that code P1254 would pop up, and we have seen that several times in our Cobb Accessport. This is not really "public" information and it's buried away in Porsche's document repository.
We do know that the Boxster models and 911 Turbo models use a certain same servomotor and the Cayman models and GT2 RS use a different servomotor. Not really sure what that means though
Any chance you'll try the APR tune to see if that has any better track results?
No, we’re a Cobb dealer and have nothing but positive things to say about them. The flexibility of the Accessport and ability to get pro-tuned, which we are (thanks BGB Motorsports!), is much more attractive to us than a “set it and forget it” flash tune. We don’t have any experience with the APR tunes for the new platforms, and while we know they’re probably great, we love the Cobb experience. When you are talking directly with your tuner while at the track and running logs it’s hard to steer away from that service.
Also saw that and super interested to hear some more feedback. Looking for a solution that will permanently solve all possible cooling issues instead of always doing small bandaid fixes.
Sorry to thread bump/revive old threads but I was curious what oil pressures you were seeing during your track days. From other threads, albeit not many, high oil pressures (65 to 70psi) seem to be fairly common at high RPMs. Did you guys see this as well? Have you seen adverse effects from running 20 to 30 minute sessions multiple times a day at elevated oil pressures?
We will be out at the 48 Hours of Sebring this weekend as a vendor. We are not tracking but our car will be on display. We are confirmed for March 5-6-7th at Sebring so that's when we will be testing the new temperature sensor, factory big brake upgrade, and we have one more thing in the works in the power department
If you see us at Sebring this weekend please stop by and say hello!
06-04-2020, 10:55 AM
