View Single Post
Old 07-17-2015   #23
Paul Workman
 
Paul Workman's Avatar
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,466
Default Re: LT5 miss at all speeds

Quote:
Originally Posted by XfireZ51 View Post
Paul,

For purposes of accuracy, the ECM does not actually issue the firing command to the secondaries. The ECM energizes the secondary injector power relays via ground, which in turn powers the secondaries. The secondaries then use the primary injector firing signal. So there is no unique signal coming from the ECM to the secondaries themselves.
Again, another "work-around" from the L-98 avoiding the need for injector drivers on the ECM motherboard.
Righto! Poor wording on my part. Better to have said the ECM powers the secondaries via relays #1 and #2, as "explained" by the schematic... (No points for rushing)
Paul Workman is offline   Reply With Quote