What this plug is for?


Well-known member
Can someone tell me what this plug is for ? It’s with the bundle of wires that we’re connected to the EGR control unit in the seat box. I’ve eliminated that and would like to get rid of all the extra wires. This plug was just hanging out and not connected to anything.


Well-known member
If it were a Disco, I’d say it’s for the O2 sensor, but that may not make sense in your situation. Or maybe?


NAS-ROW Addict
Wondering what that round black piece just beyond it is for…. You don’t think the round one is meant to go in there do you?


New member
That's the diagnostic connector for the EGR unit.

Frobisher is correct, it's the same 3-way connector as used for D1, RRC, Def.V8 O2 sensors.