I can't seem to remember what this wire plugged into? And can I still run it without it? Because I have no idea how long it's been missing. It's on the passenger side of the upper intake manifold.

 

2 or 3 wires in the connector?

 

It has 2 inside the connector I know there was something there that it plugged into but its M.I.A. and i might have been running without it because I know I did not mess with it.

 

I think I know what it plugs into. I believe it's another connector that looks similar to that one. It might be connected to the wires that plug into the top of the thermostat housing or the wires that plug into the alternator or something like that.?

 

2 wires, what are the color codes and what year wiring harness, I can look them up

 

One is green the other is red with yellow

 

 

And it's a 2003

 

I have dark green/violet wire with yellow/red wire as Knock sensor, but thought its hook up was on passenger side of intake, valve cover on passenger side

 

Yes that's where it hooks up at