i've searched all over from here, to google to the p4 doc. and can't find anything about dfco skip.

my car seems to be in it alot and i can't figure out why or even any tables about it.... or that it even exists other than tuner pro telling me i'm in it.


i am running a 730 ecm with code59 dumped in it. whenever dfco skip is on, the data logged gets thrown out of the auto tune program, thats what started me asking. i asked over on there board first and thats how i even found out i was in dfco skip in the first place, but thought i'd do some research for myself too.


does any of these other ecm's have such a thing? and if so.. where could i read up on why its being set.... if not. sorry to cross post.

 

I don't know what is meant by DFCO 'skip' mode. A SWAG would be that the 'skip' is in the auto tune, it is being skipped. While in DFCO the auto tune can't take place. As the fuel pulse width is set to 0.

Can always disable DFCO for the auto tune and re-enable it later.

RBob.

 

hmmm good idea, I'll look into that. I do understand that it throws out the parts of the log while in dfco, but I was thinking when its doing this skip thing, that it means it doesn't apply dfco on the next decel. I have noticed it does it mostly at idle at redlights. and then it seems like the next decel doesn't go dead lean on my wb. I'll double check my logs to make sure I'm looking at this right.

 

just to follow up... i set stuff to disable dfco and it kept the dfco form kicking in but still goes into dfco mode. i think its something only in $59.




figured i'd follow up incase the thread every pops up in someone's search.