The injectors are triggeed when the ECU grounds the injectors.  This
ECU ground is one of the brown wires on the driver's side firewall.
Another reason to always check all your ground wires on our old vans.

Laurence Smith
Hamilton, ON
90 Westy (fanumbos)

> -----Original Message-----
> From: Vanagon Mailing List
> [mailto:vanagon@gerry.vanagon.com]On Behalf
> Of Rico Dagastino
> Sent: Friday, March 15, 2002 7:33 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Electrical Saga Continues
>
>
>   I replaced the distributor on an 84 GL and how have more
> than adequate
> spark.  However, the injectors are not firing.  My question
> is: Does the
> ignition module, which is connected to the ECU by a white
> wire, trigger the
> injectors by sending an electrical charge from the Ignition
> Module to the
> ECU, or is the firing of the injectors triggered by the
> ignition module
> grounding the triggering circuit in the ECU?  Knowing the
> answer to this
> question would allow me to more easily find the faulty component.
> Thanks in advance for your help.
>
> Rico Dagastino
> Munford, TN
>