How to Wire an OBD2 Alternator on an OBD1 Engine / Chassis
First step, cut off the OBD2 alternator plug from any unused OBD2 engine harness..
Second step, cut off your OBD1 engine harnesses alternator plug..
Third step, match color for color below the four alternator wires and solder/ heatshrink each for a trouble free connection:
black with yellow stripe = black with yellow stripe
white with blue stripe = white with blue stripe
white with red stripe = blue wire
white with green stripe = white with yellow stripe
Finally, the large white wire by itself will reconnect just as it was on the obd1 alternator..