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Alternator Wiring

OBD-2 to OBD-0 alternator connector

This scenerio happens when using an OBD2 engine in an OBD-0 vehicle.
When adapting an OBD2 alternator to an OBD-0 engine harness follow this wire color chart:

OBD0 (DPFi – STD/DX)    –   OBD2 plug
 yellow  to  white/red 
white/yellow  to  white/green
 black/yellow  to  black/yellow 
 white/blue to white/blue 
OBD0 (MPFi – HF/Si)       OBD2 plug
blue to white/green 
black to white/yellow
white/blue to white/blue 
 white/yellow  to  white/red 

OBD-1 to OBD2 / OBD2 to OBD-1 alternator

This scenerio happens when using an OBD1 engine in an OBD2 vehicle and vice versa.
When adapting an OBD2 alternator plug to OBD1 engine harness and vice versa follow this chart:

OBD1       OBD2 plug
blue to white/red 
black/yellow to black/yellow
white/blue to white/blue 
 white/yellow  to  white/green