I am struggling to get a decent tune on my swap project- its a cammed LQ4 (sloppy stage 2 copy cat cam) currently MAF disabled trying to set my VE table. My wideband is on the driver side right next to my O2 sensor. I see fairly normal AFR data, but the car feels like its running and reacting rich. The car generally wants to die off throttle and while putting the clutch in.
https://log.tunezilla.com/s/VN8bypi3
This is a recent log I took, I ran the car through gears 1-2-3 and then my fuel cut strangely (almost sounded like anti-lag) and then the car died.
My O2 sensor data seems weird to me, but its possible that this looks normal? figured it would more like 0V and 1V flickers rather than a semi analog looking signal.
Would love any insight on this issue and the tune in general- the car is just not happy yet.
EDIT 9/1/2023: Dying issues and weirdness with idle seemed tied to manual vs auto bin. With an updated manual 6L and updated airflow, the car is happy.
EDIT 9/10/2023: My O2 sensor data WAS weird, they were reporting rich and reacting very slow. This resulted in extremely lean closed loop fuel trims and subsequently my AFR. That "antilag" was basically me leaning out.
EDIT AND CONCLUSION: Cleaned injectors, new spark plugs and routed melted coil pack cables. Tune was OK, was just misfiring pretty badly.
Bookmarks