986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Car occasionally loses all power when driving, misfiring, -25% and +25% fuel trim

ike84 · 04-19-2023, 05:19 PM

Those numbers don't make any sense. Its not possible to consume 25% more fuel and still be at lambda on your nbo2 sensor. -25% is equally unlikely. To get the two together is physically impossible as far as I can reason. To that end, I would start with the nbo2. You should probably check your codes and see what the ECU is telling you first though.

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04-19-2023, 05:19 PM	#2
ike84 Registered User Join Date: Oct 2020 Location: KY Posts: 1,216	Those numbers don't make any sense. Its not possible to consume 25% more fuel and still be at lambda on your nbo2 sensor. -25% is equally unlikely. To get the two together is physically impossible as far as I can reason. To that end, I would start with the nbo2. You should probably check your codes and see what the ECU is telling you first though. Sent from my SM-N975U using Tapatalk __________________ 2000 Box Base, Renegade Stage 1 performance mods complete, more to come When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...