Title

VAM to MAF Conversion Kit

Format

SOECS Senior Project Demonstration

Abstract/Artist Statement

This report describes the process of creating a control circuit that allows an engine control unit (ECU) to read a mass air flow meter (MAF) as if it were a vane air meter (VAM). The specific VAMs that would be changed were flow tested and their voltage outputs were plotted. The MAF that would be replacing the VAMs was also flow tested and its voltage outputs were plotted. The respective outputs for the VAMs and the MAF were mathematically related and scaled from 0 to 255 as the respective inputs and outputs for the electronically programmable read only memory (EPROM). The control circuit was then created using a analog to digital converter (ADC) that sends the digital signal to the EPROM, which outputs the correlated digital value to a digital to analog converter (DAC), which outputs the analog voltage to the ECU. The circuit was tested using a voltmeter for the 0 to 5 input voltage yielding the proper 0 to 5 output voltage. Standard weatherproof car connectors were then wired into the circuit and connected to the factory wiring harness between the MAF and the ECU. The engine was then run from the new MAF with the control circuit to verify its operation.

Location

School of Engineering and Computer Sciences

Start Date

6-5-2006 2:00 PM

End Date

6-5-2006 3:30 PM

This document is currently not available here.

Share

COinS
 
May 6th, 2:00 PM May 6th, 3:30 PM

VAM to MAF Conversion Kit

School of Engineering and Computer Sciences

This report describes the process of creating a control circuit that allows an engine control unit (ECU) to read a mass air flow meter (MAF) as if it were a vane air meter (VAM). The specific VAMs that would be changed were flow tested and their voltage outputs were plotted. The MAF that would be replacing the VAMs was also flow tested and its voltage outputs were plotted. The respective outputs for the VAMs and the MAF were mathematically related and scaled from 0 to 255 as the respective inputs and outputs for the electronically programmable read only memory (EPROM). The control circuit was then created using a analog to digital converter (ADC) that sends the digital signal to the EPROM, which outputs the correlated digital value to a digital to analog converter (DAC), which outputs the analog voltage to the ECU. The circuit was tested using a voltmeter for the 0 to 5 input voltage yielding the proper 0 to 5 output voltage. Standard weatherproof car connectors were then wired into the circuit and connected to the factory wiring harness between the MAF and the ECU. The engine was then run from the new MAF with the control circuit to verify its operation.