Thread: How to read the AFR on wideband?

Hey guys, im still trying to figure my AEM wideband out.
To scan the AFR, do i scan going from WOT?
Or will it be the same doing a scan from let say 60mph?
I went WOT this morning and it read 10.4-10.5.
And rolling it read 10.9 then it went down to 10.5.
Any input is appreciated!

WOT is the value youre most concerned about.

youre still running really rich. i think you need to back off a pulley size and lean the car WAY out. it will feel much faster running on a better AFR.

your AFR at WOT should be in the mid 11s. even with my meth i still only hit 11.0.

Originally Posted by Bio248

WOT is the value youre most concerned about.

youre still running really rich. i think you need to back off a pulley size and lean the car WAY out. it will feel much faster running on a better AFR.

your AFR at WOT should be in the mid 11s. even with my meth i still only hit 11.0.

If you dont mind me asking, why back off a pulley size to work on my AFR?

Originally Posted by GTP4

If you dont mind me asking, why back off a pulley size to work on my AFR?

Because if you back off on the fueling now you'll start getting more knock.

you need less pulley and less fuel. once your fueling is dialed in THEN try to bump back down to where you were and add a little fuel.

youre running stupid, pig rich right now.