Buly,
I believe that you are right about the EC-2 providing an intermittent ground
to pulse the injector.  With that said, when the injector isn't being turned
on, you would see the 12 V on both leads of the injector.  The supply side
is obviously 12 V and also on the other because the injector has a fairly
low resistance, and the EC-2 lead is not pulling it to ground (open).

I hope that makes some sense.

Maybe someone else can explain it better.

Steve Brooks


-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
Behalf Of atlasyts@bellsouth.net
Sent: Friday, October 14, 2005 11:55 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Flooding on startup....


Tonight I spent some time checking around the engine. With both inj.
switches on, I have 12V on all the wires going to the injectors? As far as I
know, there is one 12V feed from the switch to each P/S injectors and one
wire for each injector comming from the EC2 providing intermitten ground. If
I'm right, how come there is the same voltage on all the wires?
Buly

BTW few months ago the engine was running perfect? I have no idea what
caused all this trouble?


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