Where is this damn wire!?

[UndergroundR32]

I can't find the wire that I'm supposed to ground that goes to the ECU when using a timing light. There are a number of loose wires that connect to nothing, and I don't know where to look or what wire to look for. Please lend me so assistance in finding this.

 

[90DSMTurboFWD]

hook it to the negative terminal of our battery, that is a ground.

 

[UndergroundR32]

Originally posted by 90DSMTurboFWD
hook it to the negative terminal of our battery, that is a ground.

Maybe I didn't say it right.. I don't mean the ground for the light itself. I mean the wire that you're supposed to ground out to disable the ECU from controlling the timing. I can't find it.