Here is how I built the EGR cheater for my 1999 3L MV6 (Motronic ECU) based on the Z22SE EGR cheater purchased from the Z22SE club (cost around £10) I would imagine any cheater built for the Z22SE engine would work just the same.
Firstly, I cut the wiring socket from an old EGR valve so that my finished product would simply plug into the engine loom - I'm not a fan of chopping up wiring looms.
Since I was also fitting 2.6/3.2 exhaust manifolds, I was able to completely remove all traces of the EGR valve and made a blanking plate for the side of the plenum - as can be seen in the last picture.
Step 1 - pins 1, 2 & 3 on the EGR cheater were connected to pins B, C & D on the EGR socket and a long wire onto pin 4 for connecting to the switching side of a small 12v relay (I used an old Carlton fog light relay because it was nice and compact)
Step 2 - connect 2 wires to pin E on the EGR socket (plain yellow wires in the next pic). Since this is just to give you 2 +12v connections for the relay (1 on switching side, 1 on the
switched side), you could also connect just one wire here and bridge at the back of the relay, your choice.
Step 3 - connect a wire to pin A on the EGR socket (yellow wire with red trace in next pic) which will go to the switched side of the relay
Finish off by wrapping in insulating tape or heatshrink as you prefer. When complete it's small enough to be tucked away in the front cable tray...
Nothing to see here...
Clutter removed...
Blanking plate on the side of the plenum...