DFCO question

[ggenovez]

Hi all,

I've been reading up on DFCO, and I was wondering if there is a way in TP to show when DFCO is engaging.

[RobertISaar]

depends on the application. some masks have it setup in their datastreams already, other would need some ALDL response modification.

or you can just watch BPW and when it drops to 0 suddenly, that would be DFCO.

[ggenovez]

Thanks Rob,

Of course I gave you no information whatsoever, so you couldn't read my mind or guess? ;) 7747 asdu.

What I would like is to have a flag on the dash.

I guess another way to do so is to watch the BLM shoot up all of a sudden...

[ggenovez]

Is there a tread or a toolkit or something taht teaches you how to create Dash entries?

[RobertISaar]

when in DFCO, BLM will lock to whatever it was before entering DFCO. INT should reset to 128 as well. you will see O2 voltage drop to 0/near 0.

and i know i made a tutorial on the TP forum, but i could have sworn there was one locally as well.....

[ggenovez]

Thanks! I'll look into it..

[ggenovez]

Hey Rob, Found your post on http://forum.tunerpro.net/viewtopic.php?t=2094

Nice primer. But what I'm looking for is how to create new create a DFCO Value that, for example, takes the "DFCO - Enable temp, TPS threshold, Map, RPM... Etc" and have a flag that shows if DFCO is enabled.

Even having a flag that shows when BPW reaches 0 would be great...

Thanks again...

[RobertISaar]

you're mixing the calibration with the datastream.... it doesn't work like that. what you would need is a bit in the datastream that gets toggled to display DFCO/non DFCO status.

and i can't think of a way to have a flag be toggled by BPW.... maybe set an alarm up to highlight the BPW when it drops below a certain threshold? but no flag.

[ggenovez]

That works! Thanks!

[Six_Shooter]

Displayed BPW does not always drop to zero when DFCO is engaged.

The othe thing is that the '7747 datalogging rate is so slow that you could enter and exit DFCO and never have it displayed in the datalog.

Best way to see would through using a WBO2 sensor and watching for an extremely lean conditon.