DFCO question...

[The Alchemist]

could someone tell me the difference between b3308 > DFCO M6 Enable Temp 140
&
B3313 > DFCO Temp Enable 60
The main reason is that its working in this car I have been tuning yet B3308 set to 140 would seem to indicate that it won't work unless the temp is over 140 C but that is not the case cos If I set B3313 to 140 it stops DFCO from working....
Thanks

[SSpdDmon]

Is the car a manual or automatic? Was the tune ever reflashed with a calibration from an automatic if it's a manual (or vise versa)?

M6 = maual six speed....so if it's an auto, you need to change B3313.

[dfe1]

could someone tell me the difference between b3308 > DFCO M6 Enable Temp 140
&
B3313 > DFCO Temp Enable 60
The main reason is that its working in this car I have been tuning yet B3308 set to 140 would seem to indicate that it won't work unless the temp is over 140 C but that is not the case cos If I set B3313 to 140 it stops DFCO from working....
Thanks
B3308 is the enable temp for DFCO during gear changes, when you let off the throttle in a car with a manual 6-speed. If this is set to 140 C, it's effectively disabling DFCO between gears, something you might expect if the car has an automatic. If it has a manual trans, set B3308 to 60 (or whatever value you like) to enable it.

[The Alchemist]

B3308 is the enable temp for DFCO during gear changes,


ahhh thats what I wanted to know, thanks for your replies that explains a lot. Just another case of "description" disorder :)

:cheers:

[ferocity02]

Sorry to bring this back from the dead, but how does the PCM know that you are in the middle of a gear change? I have a Silverado that has been swapped from a 4l60e to a T56. I am still using the automatic tune (with some changes to remove various trans DTC's). The DFCO M6 is currently disabled, regular DFCO still works with the T56.

[joecar]

PCM sees the clutch pedal position switch.

[Mikz86ta]

My 2003 S10 M5 / LS1B PCM equipped has a stock 6 pin/wire clutch switch. It knows 3 positions of the clutch apparently. Did you get a stock clutch assy, swithc and wire it correctly first off?

[ferocity02]

The clutch is not wired into the PCM on my swap. Not going to bother. Thanks for the replies though!

[Mikz86ta]

Okies