Re: 165 ECM question, "single fire" vs "double fire"

[romans@starstream.net (Romans, Mark)]

>From looking at the wiring harness on my 87 Vet,  (86-89 F&Y bodies all use
the 165 ecm) there is only one wire providing ground to the injectors
through the ecm, so only the single fire, batch mode is used.  All injectors
fire once every engine revolution.  No it may have to do with synchronous
versus asynchronous pw.
Mark.
----- Original Message -----
From: "Rick Lindstedt" <rick@mafb.org>
To: "GM-ECM" <gmecm@diy-efi.org>
Sent: Thursday, May 04, 2000 1:36 PM
Subject: 165 ECM question, "single fire" vs "double fire"


> Can some please tell me the difference between double fire and single fire
> on the injectors and why/how/when the ECM uses these variables??
>
> Thanks so much.....
>
> Rick
>
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