Injector Duty Monitor

[Walter Sherwin]

Another thought..............how about an old "surplus" oscilloscope hooked
up to the injector circuit.  This would provide a pretty good
visual/graphical representation of duty cycle and phasing?

Various companies also manufacture "plug-n-play" notebook oriented
automotive oscilloscope modules.

Have fun;
Walt.



-----Original Message-----
From: Gregory A. Parmer <gparmer at acesag.auburn.edu>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Monday, January 04, 1999 3:25 PM
Subject: Re: Injector Duty Monitor


>
>On Sun, 3 Jan 1999, Khoo Teck-Khoon wrote:
>> I've searched the archives but could not find anything relevant. I am
>> interested to make my own injector duty monitor..sort of like the
>> air/fuel ratio..Can this be done? I am not very familiar with
>
>For a relative sort of deal, see
>http://sura1.jlab.org/~bowling/fieye.html
>It is a *very* simple idea.
>
>For more accurate results, an analog voltmeter connected to the
>ECM side of the injector should give reasonable data...as in 12v=0%
>duty cycle, 0v=100% duty cycle.
>
>-greg
>