It's not a resistor block.... Has a small circuit board in there.
Blue wire +5v
Yellow/Green is signal to ecm. .4-1.4v is up right. / 3.7-4.4v is tipped over.
Black/Blue is Ground.
Make something that takes the 5 volts to .4-1.4 volts, should be good to go. (can check that in diag too)
Simple voltage divider should work. 10K & 2K resistor should give ya .83volts.