You only need to have the key/ignition off to unplug the ecu.  
Hopefully someone would never just unplug it with the system powered up.  

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
John C...
Sent: Thursday, December 27, 2007 2:46 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Latest On My Fuel Injector Saga

Didnt you say you replaced the ECU?
Dont trust it, off hand.
Hope you disconnected the power when you changed it?
best,
JC...

-------------- Original message --------------
From: Vdub Guy <fonman4277@COMCAST.NET>

> Well, now that I know what type of test light to use to check to see if
the
> injectors are firing ( I had bought one some time ago, forgot I had it) I
have
> now found I am not getting ground to the injectors. I followed the
procedure in
> Bentley, checking the relays and the connector to the ECU and it all seems
OK.
> Don't know, this may bump up my Subaru conversion, as I'm getting weary of
> delaing with the damn thing. I never dreamed pulling the 4 injectors and
having
> them cleaned would turn into such an ordeal... Jeff