Hi all, Im having difficulty with some EGR wiring on a H22 EG civic im currently doing. Im basically looking for a diagram/chart that will tell me what colour wires on the connector goto which ECU pinouts. The wiring and ECU is OBD1. I have an OBD pinout diagram that says the EGR has 5 new wires to be added to the block connector and I can only find a 3 pin connector on the EGR. From looking at a few vacuum diagrams I think on the prelude there was another valve of some sort used for the EGR (which looks like it runs along the top of the firewall). Is it simply I dont have this valve on my chassis hence why I cant find the other 2 pin connector? Or is it the purge valve on top of the engine by the fuel injectors?

Any help would be greatly appreciated, I know most people ditch the EGR but I wanted to keep it if I can.

Cheers