new $EE tuning thing!

[Thatdudeorion]

That's quite interesting. I was operating under the assumption that the inert gas in the chamber would indeed reduce fuel consumption, but I definitely now feel compelled to disable it altogether and do some followup testing based on your advice.

Additionally I could use some help with my DFCO stuff, I don't know if I'm understanding the min/max/disable tables correctly. I'm trying to get the injectors to stay off for as long as possible, as frequently as possible and I think I'm making some progress, as on decel the injector PW will go to 0.00, particularly in real high vacuum/low MAP scenarios such as high vehicle speed throttle chops, but then bounce back and forth to ~1.0-2.0 for a couple counts, then back to 0.00 for a few counts and so on. and I'm just wondering if its because I don't have those tables and other DFCO parameters set correctly. I have eliminated all the DFCO spark retard and cranked up the advance in the VE cell I enter on decel, and this has virtually eliminated all engine braking which is part of what I was after in the interest of extending my closed throttle coasting. But I'm just trying to optimize DFCO with the goal of seeing 0.00 injector PW from the time I chop the throttle until I start accelerating again. Any help would be greatly appreciated.

[steveo]

in dfco spark doesn't do anything. engine braking is at maximum during dfco. its just to smooth transition into dfco during the momentary lean condition that results.

[Thatdudeorion]

I think you're thinking of table 'DFCO spark blending' which does the transition smoothing. There's another table 'DFCO Spark Retard' that retards timing while in DFCO and the more you retard it, the more engine braking there is. Almost like 99% sure about this one. You crank up the retard during DFCO you'll get more popping and banging and engine braking. I have of course gone the other way and minimized the engine braking, I just gotta figure out how to keep the injectors completely cut off for as long as possible. Coasting in neutral leaves them running around 2.5-3.0 msec, and engine off coasting just isn't too practical for me since I've got an A4.

in dfco spark doesn't do anything. engine braking is at maximum during dfco. its just to smooth transition into dfco during the momentary lean condition that results.

[steveo]

if there's nothing to burn, how would it matter when you burn it??

[kur4o]

Whenever Dfco cuts fuel it also max the spark retard at 25 degree with stock setting. If you want to completely remove the Dfco spark retard zero byte_128c3.
byte_128c4 is responsible for the delay of fuel cut when all conditions are met. If you increase its value you will reduce the delay.

[Thatdudeorion]

While I appreciate the info, I have no idea how to do what you've written, LOL. We just went from 'advanced user' to 'super user'

Whenever Dfco cuts fuel it also max the spark retard at 25 degree with stock setting. If you want to completely remove the Dfco spark retard zero byte_128c3.
byte_128c4 is responsible for the delay of fuel cut when all conditions are met. If you increase its value you will reduce the delay.

[johnny_b]

does anyone else have trouble with getting a stable connection in the corvettes? I'm having trouble getting a connection to flash. WinFlash connection seems stable so I don't believe its a hardware/cable issue.