I just put a 6 port 13b in my 85 gsl and need to know pinout on engine harness plug. I looked in fsm but cant find what pins are what. All i need to do is hook up water temp. and oil pressure gauge wires. And i guess i could hook up alternater with original wires too. And by the way i never received the harness with the car.

 

the harness is located on the passenger side firewall. Dont worry about the pins, instead, look at the color codes. here's a pix of my harness with oil pressure, water temp and alternator. the alternator has a wire coming out from both large and small harness/plug

 

so the y/w for temp. and b/y for pressure are the only ones of that color combination there. I thought i saw more than one b/w and w/b in there for alternater. Im color blind i guess ill have to wait for girlfriend to come over to tell me which is which than.

 

yeah, refer to the FSM. I cant remember them all.