mazdaspeed3 afr good or bad

[AMS38U]

so i updated my cobb ap today and apperentally i had a really old version on it lol but long story short i put the map on and im noticeing that the car doesnt boost as much as it used to cause the updated ap is alot faster in getting data well ne way i checked my afr and it went as low as 9.4 at one time is like blow BAD or what ne feedback would be good

[pues77]

With my AP I see AFR dip to ~9.5 for a split sec on hard initial accel, it's just running rich for a sec. Then it leans out to ~11.76 on hard accel. The lower the number the richer and no worry's. Under boost some people run as lean as high 12's.

[jodacoto]

[QUOTE=pues77;4483111]With my AP I see AFR dip to ~9.5 for a split sec on hard initial accel, it's just running rich for a sec. Then it leans out to ~11.76 on hard accel. The lower the number the richer and no worry's. Under boost some people run as lean as high 12's.[/QUOTE

same thing here, i see similar AFR #'s WOT with the AP. 9's for a split sec.

[speed3driver]

You guys get a bunch of black smoke out the exhaust when your hitting AFR's in the 9's WOT?

[AMS38U]

yea matter fact my friend was behind me and i was playin with some vr6 and i shifted, my buddy was like man that was a shit load of smoke from ur call i said black or whitr he was like really black i said NO WORRIES

[J-Villa]

yea matter fact my friend was behind me and i was playin with some vr6 and i shifted, my buddy was like man that was a shit load of smoke from ur call i said black or whitr he was like really black i said NO WORRIES

Thats because we really have a 4cylinder diesel motor in our car. People don't know where all the torque comes from... they just see the black smoke. :dodgy: