Obd1 wiring help to 71 Duster

dusterMike said
From what I've been reading, it's easier if you have the ecm, harness and engine fuse box.

Very, very much so. Doesn't seem like the wiring diagram changed nearly as much as the plugs over the years. OBD-II saw a ton of variation for sure- my '96 stuff shared more with '95s than with '97s or especially '98-00s even though '95s were OBD-I.