DFCO Not Working

I believed the previous owner had it set to not go into decel cut so that it burbled on decel. While I'm OK with that in first gear, I would like decel cut to do it's thing and I cannot figure out why it's not working.
My parameters for DFCO all appear to be good when I compare my map to other stock LS1 maps. My AFRs stay around 12-13 on decel.

Attachment 129806

Can you post a log file along with the timestamps of when you want DFCO to trigger?

I need to see these values:

Throttle position
Engine rpm
Vehicle Speed
Equivalence Ratio Commanded
Wideband Lambda/AFR (if you have it)
Engine Coolant Temp
Barometric Pressure
Manifold Absolute Pressure
Cylinder Airmass
Timing Advance
Fuel system #1 status
Fuel system #2 status
Throttle Cracker Airflow
Throttle Follower Airflow
Idle Air Control Valve Position

Sure thing, I just so happen to have a great example from the other day.
Look around the 4:14 mark. You can see I disabled cruise control and began to decel, and just to get some TPS triggers, you can see I blip the throttle a few times, once for a downshift.
FWIW, the same conditions exist whether cruise was enabled or disabled.

Attachment 129865

EDIT: I just realized that even though the Accel Pedal is 0%, the Throttle is still ~10%. Perhaps Throttle Cracker is preventing DFCO? Although that doesn't fully make sense, because the Throttle Cracker is calling for about 1.5 g/s in that part of the table, and the MAF is showing well above that.

EDIT2: I glanced over this one parameter a few times and now realize that I don't think I'm ever hitting the Entry limit, and that's the MAP. I'll have to raise the Entry/Exit parameters and give it a shot today.

Got a chance to take a peak at it.

I noticed a couple things:

o Your DFCO entry vehicle speed it pretty high, not a factor in this log but I would personally drop the speed down to something like 15mph

o On the ETC engines I don't know if the Enable TPS table is referencing the Accelerator Pedal or the Throttle body itself. Perhaps try disabling the throttle cracker to drop the MAP and Throttle Body Position in decel. As a warning, disabling the throttle cracker may cause your engine to stumble/die when coming out of gear after decel, your results will vary.

o For your first edit: Your throttle follower output seems correct. The MAF will not align with the throttle follower value ever, air is still gonna make its way into the engine. The throttle follower is just adding to that.

o Your enable RPM is too high. Just from the log you provided you'll never hit the RPM DFCO trigger because it has to be above 2100 RPM. I'd suggest lowering the RPM entry/exit to 1200/1000.

I'll attach 3 tune files for you to try out.
o The first with throttle follower disabled
o The second with throttle follower enabled and the MAP trigger raised
o The third with throttle follower enabled, MAP trigger raised, and throttle trigger raised

EDIT: you need to raise your DFCO stall too, right now it won't execute stall recovery until it's below your idle RPM

Well it won't let me save changes to the tune file, so here's exactly what I'd change:

1st tune file:
o Throttle cracker enable speed: 255 mph
o Throttle cracker disable speed: 254 mph
o Throttle cracker airflow: zero out the table
o DFCO Stall: 900 RPM
o Vehicle Speed vs Baro: 15 mph across the board
o Enable RPM vs Gear - Entry: 1200 rpm across the board
o Enable RPM vs Gear - Exit: 1000 rpm across the board

2nd tune file:
o Throttle cracker: all stock values
o DFCO Stall: 900 RPM
o Vehicle Speed vs Baro: 15 mph across the board
o Enable RPM vs Gear - Entry: 1200 rpm across the board
o Enable RPM vs Gear - Exit: 1000 rpm across the board
o Enable MAP vs Baro - Entry: 43 kPa across the board
o Enable MAP vs Baro - Exit: 48 kPa across the board

3rd tune file:
o Throttle cracker: all stock values
o DFCO Stall: 900 RPM
o Vehicle Speed vs Baro: 15 mph across the board
o Enable RPM vs Gear - Entry: 1200 rpm across the board
o Enable RPM vs Gear - Exit: 1000 rpm across the board
o Enable MAP vs Baro - Entry: 43 kPa across the board
o Enable MAP vs Baro - Exit: 48 kPa across the board
o Throttle Enable TPS: Add 9 percent across the board

Let me know how it works out or if you have any questions about why I'm recommending these changes.

Ah, I didn't get a chance to incorporate these changes yet, but I did fix my Entry/Exit MAP yesterday and voila...it works!
I'll take some of your other recommendations into account as well. Thanks for taking a look at this. Now I can go back to my thread of fighting my idle issues. :D