Wiring experts needed for a specific terminal connection ???

[PaulRV6]

On the large connector that screws onto the coil pack module is a terminal marked J, the diagram I have shows it as "Fuel Injector timing input". Can someone explain what this does and where does that signal or wire come from? The reason for the question is I am dealing with an old DFI accel system and there is no wire going into this terminal on the coil pack and I am wondering if I need it. My 86 has this wire going somewhere but this engine I am working on does not. This is on a stand and just trying to get this engine running. Thanks for the help.

I had this in the computer /ecm mods forum and decided to move it here.

paul

 

[salvageV6]

Goes to Connector C2 Pin A11 on the ECM. Yellow Wire.

 

[PaulRV6]

Thanks salvagev6 but do you know what it does in the ecm? I'm trying to figure out if I need that in my ancient accel dfi system. I don't know if it ever was there or its not needed by the dfi control. Thanks for the help.

paul

 

[salvageV6]

According to the service manual, not the wiring diagram, it's the cam. buffered output signal going to the ECM from the module so I have no idea how the fuel injection works on your system or if it's needed?

 

[TurboBob]

old DFI is batch fire, and does not use the cam sensor signal at all.

Bob