Buldawg76
Well-Known Member
- Joined
- Jan 11, 2022
- Threads
- 3
- Messages
- 712
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- Location
- Alabama,USA
- First Name
- Mike
- Vehicle(s)
- 2020 Mustang Ecoboost, Rapid Red Premium
Our ecos do not have mass air flow sensors so they do not actually measure air flow at all but rather use a speed density system that relies on three main inputs from sensors to calculate air flow from a predetermined map in the PCM. They base air flow on throttle position (TPS sensor) or in the ecos case the desired throttle position desired by the driver's right foot and the actual throttle blade position commanded by the PCM (it will never be 100% WOT like in a cable operated system), engine rpm measured by the crank sensor and manifold pressure/boost measured by two sensors, one in the outlet of the IC and one in the top if the intake that also measure intake temps. It looks at coolant and cylinder head temps as well as other sensors but the main signals it uses for fuel/timing delivery is TPS/RPM/MAP.
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