Setting up AFR Tracking on the GEN II (Turbo Buicks)
Once your wbo2 is set up and verified to be accurate you can configure the tracking feature in the AFR Tracking page.
Providing you are running a Extender G Chip, here is how it works.
The first three options are low limit settings. Once the mininum tps, rpm and load limits are met, afr tracking kicks in. Here are the settings I suggest to start with.
min tps 3.000
min rpm 3200
min load 166.4
lean lim % 10.0
rich lim %25.0
afr 10.8 from 2000-8000
af trdelay 0.3
From there set up the sensor monitor page to read AFR Des (Desired Air Fuel Ratio) and WB Corr (Wideband Fuel Correction). This is the page you want on when your out driving. When wb correction is triggered the AFR Des will appear and the WB Corr will show how much fuel is being added or subtracted.
Add or subtract fuel in the Tune High page to get WB Corr close to 0.
Generally the tune should be dialed in close before tracking is enabled.
Happy tuning! :usa:
Yea.... HOW do you KNOW the wideband is set up, AND accurate... What are you comparing it to?
I'm using the gen 2 on my GN, is the correction supposed to say 100% as the correct setting? or is it supposed to read 0%? I was reading 100-105% and added fuel now im at about 94-96%.Any help would be great thank you.
what version of software is in your unit.
The early versions were 100% for no correction.
the later versions read 0.0 for 'zero' correction.
I'll have to look but its the first version that you can use your guys 4" maf pipe.
I don't remember the first version with that change, but the afr tracking feature has not changed at all. Just the way the correction factor is displayed on the monitor page.
Would the 10.8 AFR numbers Rick87gn posted be a good starting point running C-12?
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