PGMFI Logo
Library> MassAirFlow Destinations: Home | Library | Change Log | Index
Search | Go

A Mass Air Flow engine managment system uses a mass-air-flow sensor (Maf Sensor) which is placed in the intake tract to directly measure the mass of air entering the engine. With this information and the size of the injectors, the ECU is able to calculate the fuel injector pulse-width required to deliver the desired Air Fuel Ratio. MAF systems typically use tables of desired Air Fuel Ratios versus airflow.

This differs from Speed Density systems (such as those used in Honda PGM-FI systems) that use Volumetric Efficiency tables combined with sensor measurements to estimate airflow without directly measuring it.

Revision: r1.1 - 26 May 2004 - 17:42 GMT - blundar { Edit | Attach | History | More }
Copyright © 2002-present by the contributing authors. All material on this collaboration platform is the property of the
contributing authors, and is covered by the Non-Commercial Share-Alike License unless explicitly stated otherwise.
Ideas, requests, problems regarding the PGMFI TWiki?? E-Mail the WikiAdmin
Site Designed By: Digital Fusion   Need a website?