trying to hook up an efie for hydrogen to my map sensor and i'm having some issues with my voltage at the signal wire from the map sensor to the ecm. a wiring schematic would help.

looks like no help johnny boy...

I'd check a powerstroke specific forum if I was you:D
Try, www.thedieselstop.com

you might try powerstrokenation.com

TDS used to be a good site but most of us old guys (the knowledge base) left. PSN has been growing in popularity and I have seen some old friends over there lately.