Jim --
It's not the A/F ratio that needs the tuning on the Accel Gen 7 --- you set the AF for what you want (or think) the motor needs (to get started tunning) and then you set the VE to get the ACTUAL A/F to match the desired A/F you set at that particular cell....
Now -- I can tell you that there are guys on here that REALLY know this stuff - so I'm just trying to throw you a bone here... "food for thought" really...
So lets say it's idling - at 750 rpms - and you want the AF to be 14.1 at idle...
You find the cell where it's idling - (or maybe it's hunting in 4 cells) - select those 4 cells - put in your 14.1 AF -- then go to the VE table and select those same 4 cells and start tunning those VE's until the actual and desired MATCH.
Now -- if the motor is too lean at 14.1 - just change the AF number to 13.5 or whatever - until the motor "Likes" the AF -- but the VE's won't change much regardless of the AF number selected. Of course you can find the AF the motor likes - get that going right - and then come back and 'tweak' the VE's - bringing them in so she'll idle (Watch your Map for best "vacuum" - no different than a carb!) and your Wide Band O2 has hardly any "work" to do... You really do not want the O2 to do much --- it's there for when it's needed -- but adding or subtracting 5% or LESS would be correct... At idle -- it shouldn't be adding or subtracting ANYTHING if the VE's are right.
Now -- I may be telling you stuff you already know... and if that's the case - then just skip over my posts...
