So what about "Limp Mode"? What are the indications and is there any potential immediate remedy? I'm sure it depends on what the cause is, but does letting the cat fully cool down ever alleviate the potential problem?
Awesome info - thanks. At what temp did the oil temp become an issue?Ive been tracking a 718 Boxster S hard and on hot days it will overheat and go into limp mode at 245-250 deg. coolant. Letting it cool down makes everything good again. We added the optional 3rd radiator kit and it keeps it under 194 under any condition now, driving hard for 30 mins redline after redline. Then the oil temps became an issue, and the car would limp after about 20 min on a 85 degree day. We solved that by removing the cover plate under the oil pan and it fixed it thanks to the increased air flow, however, when we did that we saw that Porsche wrapped the exhaust headers all the way around the oil pan, which doesn't seem ideal, so we wrapped the headers in header tape just to be sure and now it runs great on hot days now. Hope that helps. Boxster S is boosted to 380 rwhp with tune and exhaust, suspension mods, etc.