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EFI Tuning Fundamentals

Relevant Module: Fuel Injectors > Injector Flow

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02:44 In the majority of OE ECUs, airflow is either measured directly or calculated in units of mass airflow, and then the required injector pulse width to achieve a target air-fuel ratio is calculated from the mass airflow and the mass flow rate of the injector.

In the video, he says "...pulse width to achieve a target airflow is calculated..."

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