Delay before DFCO occurs
#1
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I changed my DFCO settings to be a bit more aggressive to save gas. All I did was lower the enable RPM to 1300 and the exit RPM to 1100 RPM. This is on a nearly stock 2001 M6 SS. What I was wondering is what is causing the delay before DFCO activates. It seems to take several seconds after I take my foot of the gas before the injectors turn off. I do not see anything in the tables that might cause this (using HPT). How can I get the engine to cut the injectors almost instantly?
#2
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You can increase the timing advance needed to be reached before DFCO is activated. If the timing is very low, it may take a while to reach that point. Also you entry rate may slow down the process as well, you may need to increase it.