gtman
Senior Member
- First Name
- Mitch
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- Oct 27, 2015
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- 2017 Cosmic Blue EX-L Sedan
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I've been running the TSP Stage 1 for a while and my fuel trims were consistently slightly rich (-3 to -4 LTFT). But I haven't done a datalog in a while and these were done in warmer ambient temps.
Today, I re-uploaded the TSP tune after returning it to stock for a dealer visit. Datalogging, I noticed my LTFT was at +3. Ambient temps were just below freezing. Is it running slightly lean due to the cold weather or winter gas blend or a combination of the two?
Today, I re-uploaded the TSP tune after returning it to stock for a dealer visit. Datalogging, I noticed my LTFT was at +3. Ambient temps were just below freezing. Is it running slightly lean due to the cold weather or winter gas blend or a combination of the two?
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