Fire_junky

Anybody have any schematics (or how ever you spell it) on a heater for a 77 280z. I need to know where all my vacume lines go from the heater/AC/defrost switch. If anyone knows please let me know. Thanx

Anyone know what size the origanal dashlight bulbs where? What size or part number. All mine where blown when I bought the car so I was waundering if the size that was in there was wrong. They say 12v 3.4w

I'm not to sure what the FSM your refering to is. If you know of a download link for this FSM please let me know. Thanx alot.

Accually I was able to figure out that problem but I still have the same problem. I can't get my fuel pump to get juice without jumping it and I can't get my injectors to work. I did everything the EFI bible told me to do. I did the test on page 69 and found that the terminal number 4 does not read the battery voltage like it was supossed to. It said if test is unsatisfactory then check wiring. Ichecked the wiring up and down and still don't know whats up. I have taken the fuel pump relay apart and manualy made point contact which turned my fuel pump on but not the injectors. I now know that that side of the relay is working correctly...wel maybe, but not sure about the other side. Once again does anyone know how to test a relay other than what the EFI bible sais? One last question, what is it that makes the ecu know when to give the fuel injectors power/fuel?

I need to know how to test a voltage regulator. If any one knows please let me know. I have been trying to fix my fuel injection system and now thanx to help from people in this forum I think I can but now another problem came up. When I put a charger on my battery what I assume is the voltage regulator is humming, when I put the charger on start the regulator starts buzzing along with my distributor. The other day the engine ground wire that wasn't hooked up fell against my positive coil terminal. It was there for a couple minutes before I noticed it. By that time my battery was dead. So I figure the regulator is now screwed. What I assume is my voltage regulator is on the passenger side, under the hood, behind the fusible link. It is a 2 inch by one inch box with a round 5 wire plug. The numbers are pretty much worn but what I can read I think they are 25230 N4205 On my last post (where is accessory relay) some one gave me a link to down load the EFI Bible which is a great manual, is there one for the general electric system? Thnx for any help.

No I have not downloaded either of them but I will now thanx. I have tried to do as you said with the afm flap open and key on and still don't get any juice to my pump. I still do have the ecu and relay and no I did not replace the afm but I tested it with an ohm meter like my chilton manual sais to do but did not notice a problem. I do not know how to test the air sensor its self the ecu or the relay. If anyone knows how that would be greatly apprieciated. Once again thanx for the info.

The part I bought at Napa and they told me that it was an accessory relay. The book that showed the part that I looked at(Napa Book) said that it was for air conditioning fuel pump and a few other things. the part number is 2523089977 It is about one inch by one inch by one and a half inch. it has 4 prongs and what looks like and alignment stud. This is the best I can do for showing how the prongs look. the + is where the alignment stud is _ +| _ _ I looked in my chilton and hanes manuals and found nothing about an accessory relay but when I went to napa and they told me about this part I bought it because it was my last hope. I have no Idea whats wrong with it if it isn't this relay. I replaced my ECU and my fuel pump relay and went through all the tests as far as testing my air flow unit and some other things. I get no power to my fuel pump and no fuel through my injectors. I know my fuel pump works when I hot wire it and I know the engine runs when I prime it so what am I doing wrong? I guess it could be that the fuel pump relay is bad because I took it off a junk yard Z but that was the last one in town and I don't have enough money to spend 100 dollars on a brand new part if I don't know that its the problem. Do you know how to test a fuel pump relay? Or a ECU? Thanx for the help so far.

where is eccessory relay on any 280 z? I need to figure this out real quick I need to go to work this week. I bought this relay and now I can't figure out where it is at on my car, Nissan couldn't even figure it out. If anyone knows please help me.

I have a fuel pump proplem and I have went through every thing but still can't get it working. I have no power to it and no fuel gets to my injectors even when I hot wire the pump. I have replaced the computor and fuel pump relay and went through all the steps that my manuals say to go through. I just found out that there is a accessory relay some where on the car that in its info says it controls the fuel pump. I bought it and now I can't find where the dang thing goes. I need to fix this asap if anyone knows where it is PLEASE let me know. Thhanx alot. This is a 77 datsun 280z