
Originally Posted by
niky
Actually, if it's programmed for it, it will. On sports cars like the Mazda MX-5, the drive-by-wire throttle provides good response and no "bogging" like you get with cable throttles when you shove your foot to the floor at low rpms.
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But for regular cars, the DBW is used to meet fuel economy and emissions standards. Suddenly opening the throttle causes transient lean conditions that are bad for NOx emissions. Suddenly closing the throttle causes transient rich conditions that are bad for HC emissions and economy.