s!lvias30

well my pdf file of the wiring harness i got was from the fsm here is the exact link http://xenons30.com/reference.html

ohh , ok im ging to do that test !!

ok my pin number 10 is not getting any voltage, i bought a new fuel injection main relay , also yes i checked if these were grounded, and to everything you have said

Ok which pins in the harness to the ecu are suppose to be hot exactly when you turn on the key ignition , can't really find it on the fsm

And yes I'm Spanish lol

Honestly I can't find it in the fsm which one are supposed to be hot so I don't know

Ok I had spare harnesses and ecu but they were 1977 ones , I'm using a 1978 and the efi relay I had bought it new and it clucks one and close when I turn the key , it's a 1978 also the 1977 are every different also are the harness .

Ok I just finished , the only pins that were at 12 volts were ; pin 15 = injector number One , pin 33= injector number two, pin 32= injector number three, pin 14 = injector number four , pin 30 = injector number five , pin 31= injector number six, pin 1= ignition coil, so yea what is next step

Never mind I get it now . Ok I will do it right now , give me like 5 mins

Yea you were correct I was able to identify the 1978 ecu , and yes I had a 1978 wiring harness and a ecu 100% sure , also I have been using a 1978 280z FSM PDF file from xenons30.com so I'm sure I'm doing I good . The efi I have is for a 1977 but I know the pins are not the same so I use my fsm one that is correct, ok a little help which pins on the ecu are suppose to be hot ? Thanks for the help , for real I have been carless for 3weeks about to be a month too ! Best help ever hope u can guide me to fix this

Now what?

Ok yes I put the 1978 computer , next deleted the cold start, the resistor plugs are in and all good, third the injectors don't click when firing, fourth the injectors are all getting exactly 12 volts each pin so there is power , then yes the tac moves like 1/4 of a inch when crankking the motor on . Finally the car is ran by a switch staight to the battery

How can I identify a 1978 ecu? I have two 1977 ecu and one 1978

Ok give me a second and I will do all of those steps

Plus when I unplugg the cold start the car dies . How do I eliminate the cold start and have the injectors to work , none of my injectors are working and I think it is because the computer is reading that the cold start is still on and the motor is not on so the injectors won't fire up , because All my relays are new and my wiring harness is new also all the grounds are on and new sensor , the last thing in my mind is that the FSM said the cold start valve turns on with the ignition switch andthen turns off when the switch goes back to on and he car is on so in theory I think my switch is bad but i don't know really .

Ok but doesn't the computer read if the cold start is on and then tells the ecu that the car is on , then the injectures fire up and the cold start shuts off, the problem is that the injectors won't fire still

So one please help me , I tookit a michanic and they don't know either , what is a easy fix to make my cold start to shut off to tell the computer to turn on the injectors

Ok now I kind of know what is going on , cold start valve stays on. It on shut off to tell my injectors to turn on , what can I do to fit this issue ? Could I run switches? Or what ???

bump

ok i will do that , that is the only thing i can think of that is wrong

Ok I know I'm not getting power because I turn on the car with just the cold start valve connected and then unplugged it and quickly plugged a injector connector on and nothing no power

Something like that , it just weird because I unplugged all the injector connectors and I rev it and it does the same thing so my car is running of the cold start valve only, unless the injectors are stuck open

Well got the on just one weird issue , I think my car is running on my cold start valve only I think because while the car stayed on I unplugged all the injector clips and the car still stayed on and nothing happened but when I unplugged the cold start valve the car shut off , what can be the issue ? Why is my car still running on with only the cold start valve , it revs up to 3200 only I just don't know now because I checked my injectors if the click when I connect them to a 9volt battery and yes they still click , unless they are stuck open , could that be the issue ? How can I check if I'm getting power to my injector Clips and also how do I know if the injector resistors are working ok

Thanks for the links , very helpful

ok im confused , why does my car only run when i spray starter fluid?? can some one send me the exact link of the efi bible just to be sure that im reading the right one , thanks