problems logging boost and afr in evoscan
 

hello guys just installed evoscan recently and im knew to using it my car evo 8 has aem uego afr gauge which I think already has white wire connected to pin 75 my problem is when editing the Eval and putting 0.03913*x+9 im not getting accurate afr with my gauge my gauge is at 15 and logged afr is 10 if I increase equation to x+15 afr becomes close but when my gauge drops to 14 my logged jumps to 16


Another problem whit my Omni 4 bar map sensor which is not calibrated in evoscan when I insert the eval and metric eval shown in previous threads around here
I get evoscan error RAX_DAT_D MUST preceed boost (map) move RAX_DAT_D TO above boost(Map)
anyhelp would be greatly appreciated

bumppp anyone can help please ??

I would start off by confirming this.

Have you tried uninstalling Evoscan and re-installing it with 4bar values? Sometimes weird **** just happens in evoscan.

Also, through up a log.

You should just buy a serial port adapter and log afr through it

Are you using the rear o2 sim?

For you map sensor issue, post the formula and a screen shot of your ecuflash data items. Looks like it's expecting some value to be present before the MAP value is computed? I'm not sure

i attached 3 logs of wot pulls 4 BAR map sensor and afr are at right end of the page with values way off will confirm pin 75 connection tomorrow

where can I buy it and what does it actually do

the eval im using is 0.2369*x with psig as unit you check my logs if you don't mind

Please look at this.


https://cimg6.ibsrv.net/gimg/www.evo...d5a93ac84b.jpg

thanks man ill try this equation and see what happens

the omni equation worked with -24.7 instead of 14.7
But still facing issues logging afr equation didnt worked should look to see if connection to pin 75 is already made

Try Pin 73

https://cimg3.ibsrv.net/gimg/www.evo...bc13b4e113.jpg
https://cimg7.ibsrv.net/gimg/www.evo...c616d8874d.jpg

While searching ive found this connector with 2 black and bkue wire is that supposed to be a serial port connection for the afr?its right under the dash

Yes. That is a serial port. God only knows what those wires are connected to though. You need to trace them back to whatever they are connected to.

Yea thats a serial port. Figure out were those wires go.
Your gonna need to buy a belkin serial to usb converter also