NE1: WTF Scanner keeps asking for more Fuel

[Chalky]

It all started doing a Ben map to dial in my VE table. my first pass with the Ben map was a normal adjustment 1 +/- 5%. I made the adjustments, went out to do a follow-up BEN and the next beN was showing lean again by 2 least 5% again. i had never observed this before. In my experience doing AutoVE, the changes are smaller with each pass up to a point when you start to overcompensate with changes. This was complicated by an intake change to a FAST90 and new LS2 TB. The intake did have a vacuum leak which i did find eventually along with caressing my new intake to get it to seal properly.

I just did another review of my EFILive install and spent about 45 minutes driving and creating another BEN Map. This one looks pretty good. I plan to do some extended driving tomorrow and see what the next BEN map looks like.

I can almost assure you that the error was mine. I am also hoping the problem is resolved. I'll update tomorrow.

[mr.prick]

so this wasn`t "out of the blue"?
you had done some mods then this happened?!

[Chalky]

Well kind of. I hadn't used the software/hardware in a couple of weeks prior to the intake upgrade. I was almost positive that I had a vacuum leak and I felt certain that was skewing my AFR's lean and creating a situation where the car was constantly lean.

The Fast90 has a reputation of not sealing properly. A lean condition and an intake that has a reputation for poor sealing made sense to me.

[mr.prick]

turn on your ignition key without starting your engine
and see what your your kPa reading is.
it should match your WOT kPa number.
this is a way to kinda see if you have a leak.
also i don`t remember you saying you had installed an intake prior to this.
BTW an intake leak or an exhaust leak would make things a little wacky.

[Chalky]

Exhaust was off in May for a new clutch as well.

FWIW, i have never been that happy with the idle anyway. it has always been a sore spot with me even before the intake change.

[Chalky]

And I cannot tell you why. Did two BEN Maps since yesterday and everything is lining up very nicely.

Possible reasons; Many:

Most likely a wiring issue with my SM-AFR.
A spreadsheet error or a copy/paste error.

A big thanks for the input from everyone. Sometimes the feedback just makes you think!