fluctuation in afr's log included
 

Hi yall, been tuning with tunerstudio for over 6 months cant get rid of this afr fluctuation, going turbo soon and would like it gone before i do, what settings would cause this? Thanks

setup: brain built ms3x 1990 miata aem uego

update: added tune to my post

You should post your tune if you expect any help. Looking at the log I see accel and decel flags even when the car is idling.

thanks, i added my tune file

I think its a general courtesy never to upload a "currenttune.msq".

sorry, didnt know, fixed

I'm assuming the aem uego is calibrated and setup correctly.

Look at tps accel and gego in your log. There are accel flags everywhere followed by gego compensating at only 4 ignition events per step.

You could try going for a drive with 100% map based ae and mapdot threshold of 50-80kpa/s for comparison.

Perhaps someone with good tps and eae settings will chime in.

https://www.miataturbo.net/attachmen...ine=1356964655

https://www.miataturbo.net/attachmen...ine=1356964655

The lean throttle tip in from idle gets no correction since gego is inactive below 1500 rpms.
https://www.miataturbo.net/attachmen...ine=1356964655

Also, Do you have a colder than stock thermostat? The car stays in warmup mode for most of the log since wue ends at ~188 F.

he needs to tune his own accel-pump settings.

Thanks for the input. I'm gonna play with the tune today