Speed Density in light throttle

[jamesbond2509]

Im finding that after some tuning in closed loop light to mid throttle, the AFR fluctuates between 14.3 & 15.3. Can anyone confirm if this is normal for closed loop operation. Im thinking that If I switched open loop I can control AFR better. Please chime in!

[Turbo Bob]

In open loop cruise, mine does not fluctuate this much. I have read closed loop speed density doesn't like single turbo setups. Post up your tune.

[5.7ute]

Closed loop operates by switching rich to lean around stoich, so that is normal. There is a hidden parameter to control how much, but I haven't played with or proven it yet.

[joecar]

Post log file.