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-   -   large oscillation in AFR at freeway speed datalog attached (https://www.miataturbo.net/megasquirt-18/large-oscillation-afr-freeway-speed-datalog-attached-68119/)

nwNAMiata 08-30-2012 09:08 PM
large oscillation in AFR at freeway speed datalog attached
 
2 Attachment(s)
Im having trouble getting rid of my AFR oscillation that starts when i get up to freeway speeds 60-75, when i cruise at 50 its pretty stable between .5 AFR but above 60 it will jump from 14-18 at a very consistent frequency. any ideas????

More details, running ms3x, maf delete, speed density iat sensor, pretty sure im running closed loop? IS there a way to run open loop in MS?

emilio700 08-30-2012 09:41 PM
Originally Posted by nwNAMiata (Post 921509)
Im having trouble getting rid of my AFR oscillation that starts when i get up to freeway speeds 60-75, when i cruise at 50 its pretty stable between .5 AFR but above 60 it will jump from 14-18 at a very consistent frequency. any ideas????
Running open or closed loop?
Which ECU? (MS1 PNP, MS2 DIY..)
AFM, MAF or speed/density with auxiliary IAT?

nwNAMiata 08-30-2012 10:25 PM
sorry, updated with more info, also running AEM linear wideband.


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