I will be checking the O2 output this morning.

Check on idle control. ICV is working. The plastic wire fittings are shot. There are no numbers of the ICV to indicate polarity, so it has been tried both ways. No change.

Plate adjusted per Pierre. But just because the plate is properly adjusted to the plunger, it does not indicate the Plunger is in proper relationship to the Metering Edge. When I started this project, this system was dumping fuel into the boot and into the crankcase. When I tore the FD down it looked like it had a new diaphragm. I honestly did not find a problem with the FD.

I'm going to pull the FD this morning and adjust the Plunger Nut up 1/6 turn at a time until I just get fuel leakage at the injector outlets. After I get fuel delivery, then back out the PN 1/6 of a turn to the last point before I got fuel delivery. My thinking is that the A/F ratio is built into the design. When you have the free play adjusted to the 1-3 mm range the A/F mix is set. But that does not set where the Metering Edge is and the start of fuel delivery.

Am I still making any sense?