MarkF30

Driving today- hot day 85-90, and i have a heavy foot. After ~2hrs of driving, car's power dropped off significantly...i was struggling to maintain 80mph up slight inclines. Once off highway, i could hear turbo not kicking in, and car felt like a natural 4 cyl.... no power. Also, there were no warning lights on at any time. Parked it, came back out and took it for a ride 3 hours later, turbo worked normally. My question is if the ECU Limp Mode was triggered, and if so, what caused it? Any help is appreciated!

Driving today- hot day 85-90, and i have a heavy foot. After ~2hrs of driving, car's power dropped off significantly...i was struggling to maintain 80mph up slight inclines. Once off highway, i could hear turbo not kicking in, and car felt like a natural 4 cyl.... no power. Also, there were no warning lights on at any time. Parked it, came back out and took it for a ride 3 hours later, turbo worked normally. My question is if the ECU Limp Mode was triggered, and if so, what caused it? Any help is appreciated!