Sale ends todayGet 30% off any course (excluding packages)
Ends in --- --- ---
Forum Posts
Courses
Blog
Tech Articles
Hi, new tuner here. I was doing some data logging in my car and did some full throttle runs and I was surprised to see the EQ ratio was very lean at WOT ~0.7-0.66. Is this even possible? Is it possible for the engine to run at over 40% leaner than stoich? Or is the EQ ratio reading actually lambda reading, which would make more sense.
Data logged using OBD Auto Doctor
Attached Files
Fuel-tune-1-run-2.png
It looks like lambda, if your ratio is air/fuel vs stoic it is lambda. Very unlikely peak power would be tuner that lean and run consistently.
