So what I get from this thread and the one Brian Carlton kindly pointed out, is that to disable the EGR on a 602/603 with the EDS you have to either make a circuit (which has the potential to leave the turbo full bore at failure) or get a pressure operated wastegate, which there isn't one for the 1992 300D?

I don't like option 1. Or option 2.

Have I missed the point? Is there an easier way? Please, oh Mercedes deity, let there be an easier way.....!

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1983 240D Silver/Blue "Sadie", unknown miles. 100k miles on WVO single tank, converted to 2 tank about 10k miles ago, FPHE, Injector Heaters, Aux Fuel pump. Alcohol/Water injection. Frantz oil bypass filter
1992 300D 2.5 Turbo Green/Tan "Jade" 267K miles Stock.
1992 300D 2.5 tan/tan "Rocky" on 2 tank WVO. Pressure actuated Turbo "rat's nest" surgery completed. 197k miles