Quote:
Originally Posted by Blacktree
One note about DFCO: there is often a delay before it is activated. The delay could be several seconds, which would severely reduce its effectiveness for fuel economy. Although you may be able to adjust that in the ECU programming.
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Good point. I have read that tapping the brake pedal enough to activate the brake lights can quickly activate DFCO on some cars since the brake light switch is usually an input to the ECU, but all my cars fortunately go into fuel cut almost instantly.