Celica st205 afr?

[Snake19888]

Hello, does anyone have a afr wideband gauge in his st205 with oem ecu?
Im interested in the afr under boost under 4000rpm (2500-4000 with boost) and over 4000rpm.. in 3rd or 4th gear.

My issue is that i have a afe from 13.1/13.5afr under 4000Rpm with full boost and after 4000rpm a 11.1afe and i dont know if that is normal or what the problem can be if not normal.. map sensor is it not because i changed it already..

[Snake19888]

No one any idea?

[zaluss]

I'll see if I can snap a video today.

[Snake19888]

That would be great thank you

[zaluss]

https://www.youtube.com/watch?v=D4uEy92 ... e=youtu.be

I didn't get a lot of chances to push it but I cut it into a few sections that I did. Hope this helps.

[aus jd 2703]

doesnt sound abnormal, you can run almost stoich AFR's to a few psi, then you need to run rich to be safe.

rpm isnt a great indicator, boost is the concern if you had 5-10psi and 13:1 i would be a little concerned.

ideal power afrs are around 12-12.5 so 13 isnt that bad. 11 is really rich (typical of Toyota).
14:1 to 16:1 is normal for idle cruise etc when no boost is present

[Snake19888]

Thank you so much. My is the same so its normal.
I was only confused because on my gen2 it was completly different. Tjere o have 12.5afr at the moment where boost cames al the time. But how i see on a gen3 its not the same so i was confused