Originally Posted by ennored
And, as to whether a certain car, on a certain day, during a certain drive cycle, is doing DFCO. I have a phrase I use: "calibratable beyond explanation". That is, there's a zillion inputs that can and are used to determine if the fuel should shut off. It's not just pedal position. There's throttle position, airflow, engine temp, battery state of charge, gear position, torque converter state, trans temp, engine speed, road speed, ambient temp, ambient pressure, purge state, AC state, phaser position, codes present, tests running, phase of the moon, and more. Blipping the throttle and watching for the fuel to shut off isn't going to tell you much of anything.
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