Running SD and Narrowband Sim. Trouble with combined fuel trim

['97 Cayenne]

Some may have seen this thread regarding my car not running.

http://www.dsmtuners.com/forums/newbie-forum/431826-another-car-wont-start-stay-running-thread.html

The issue was fixed and i'm now idling. I've got my airflowperrev dialed in and my tps volts is fine (.63-.65)

One thing i'm having trouble with is the combined fuel trim. it's in the negative? and if i try to compensate for it by pulling fuel using deadtimes, the car shuts off cause there's no longer any fuel coming out.

Also, I'm not familliar with the switch point nonsense for the wide band.
I do not have the factory o2 sensors anymore and am using an AEM Eugo wideband and simulating narrowband. do I need to change the switch point for this?

Here is the wideband i'm using
EXTREME PSI : Your #1 Source for In Stock Performance Parts

I'm also running SPEED DENSITY.

Help me get dialed in before i go grabbing cruise logs

 

[cjridert1]

I didnt see cams in your profile - do you have? AirflowPerRev I had issues with meanwhile getting everything else making sense with aftermarket cams. Assuming you have aftermarket cams, try bringing your idling cells up a few points to see if your tune cooperates with that any better.

The Narrowband switch point is specific for each different WB. Check/find yours here.

 

['97 Cayenne]

I didnt see cams in your profile - do you have? AirflowPerRev I had issues with meanwhile getting everything else making sense with aftermarket cams. Assuming you have aftermarket cams, try bringing your idling cells up a few points to see if your tune cooperates with that any better.

The Narrowband switch point is specific for each different WB. Check/find yours here.

profile is up to date. stock cams. 100% stock internals

 

['97 Cayenne]

here's where i'm at right now with my idle.

How does it look so far? Am i any closer to being able to grab a cruise log?

Can somebody tell me how my air and fuel will be adjusted using SD? or will that be adjusted using the SD VE adjust tools for combft and SD ratio? and then i can fine tune it to my liking from there?

 

[cjridert1]

Your AirflowPerRev is only .21, bring it up to .25 or so using the #s in your SD table. After that youll have to tweak the deadtime a little to get your CombFT good again.

To adjust your a/f in SD, you want you essentially want your wideband a/f to be the same as your afratioest, this would be way easier if your AEMs logged wideband #s were the actual wideband #s... I found (suggestion from another member) that its easier to set all of your direct access fuel #s in boost to the same # (like 10.5) and off boost to 14.7 - then just scroll thru your logs and make changes to your SD table so that the wideband a/f = AFRatioEst. CombFT tool does this for you if you dont want to do it manually.