Yaboyolin

Yes the fusible links are all new, the old ones had deteriorated. The fuses are also new and the correct amperage. Ill double check connections tomorrow though and use the wiring diagram Zed provided to check everything with that

Yes sorry, 1977 280z 2+2. Switch is out. I have power at the switch from the green wire but the other 4 connections have no power. That's all tested directly on the switch not at the connectors

Hey guys, final issue on this car before its all ready (besides bleeding tbe breaks). I have no turn signals or hazards. Not flashing on the dash, no lights. It seems like the wiring all goes through the hazard switch. I have power to the switch, I think its a green wire. But out of the switch I have no power at all. Doesnt matter whether its on or off. I also have no power to the flasher units. Either of them. Fuses are good. Connections are cleaned. Will a new hazard switch magically fix both issues? Or am I missing something here?

I ended up finding another old post on zcar that stated using a heater hose from some other car, cant remember the part number put you cut off about half of it and it works great! It even has one side that is a little bigger. Runs great now, thank you all!

So I did find a vacuum leak. A rather big one at that. The first picture is a hose that's directly under the intake manifold. The picture might be upside. The second picture is of my current setup. Where dose the hose in the first picture go? If I hold my finger over the hole the idle gets real rough. The third picture is of what I assume to be the PCV valve

The fuel pressure is 35 or so PSI. It sure seems they're all firing, it runs great above 750 RPMs. The car would run for 10 seconds or so before dieting with the old AFM. I'll check for vacuum leaks as well.

Hey everyone, I've got a 77 Z 2+2 right now and I'm having some issues. The car simply won't idle or if it does it runs really rough at 500 RPMs. It revs up and drives fine, but if I stop it usually dies. I tried the simple thing, to adjust the idle from the idle screw, but the idle will not raise up or lower. It has a sweet spot where it runs best, but 500 RPMs is where the engine is determined to idle. The fuel regulator is hissing. I checked the vacuum line for gas and there wasn't any noticible amount, but I'm pretty positive it shouldn't make that noise. The AFM is new, as the old one wouldn't let the car run at all. There isn't any black smoke or anything of that nature when the car dies. It just sputters and dies. I've read to block of the auxiliary air thing, and will be doing that today, but was curious if any of you had other ideas?

Where exactly am I supposed to buy GL4 oil? Ive called all the local places and they only carry GL5 or they carry GL4 140w

Alright, thank you. I was just worried about the fact that I didnt know if this granny came out of a Z or ZX and I dont have a manual on a ZX

Nothing's wrong. I just got the car running and am doing a complete fluid flush because I don't know how old any of it is. The oil I have is GL5 80-90w. Its shell gear oil. We run it in other transmission on various vehicles and tractors on the farm, never had an issue. I'm just curious if 80-90w will work on all 5 speed Z and ZX series transmissions

Yes I read that entire EFI book you linked. Pin 1 had power. It was also connected to the coil correctly. I went through the rest of the steps the book said to do. Then Pin 10 had no power, as the book as the book said it should. I went through the wiring and all the relays until Pin 10 had power. This still didn't solve the issue. I recleand all connections and grounds. Nothing. I took out the EFI relay that was in the engine bay and hard wired it. This didn't solve the issue. I cleaned and redid all connections again. I rehardwired that relay and it started up. I'm guessing that relay was just bad and the connector was really dirty. I did follow that book. If you read the par of the book that helps with the no starting issue you'll see that I followed it step for step

Hey guys, I finally got my 1978 Datsun Running. If youve been following my problem in the fuel injection section, you should know that this car has already been a headache. Anyways. This car was a 5 speed swap. Not sure if out of a ZX or just a Z. Ive got a 5 gallon bucket of 80-90w gear oil sitting in front of me, will this work? Ive read about GL4 and other weights, but this stuff is free and works good (My stepdad owns 15 tractors and this is all he ever uses). Ive read that you can use 80-90w, but I didnt know if there was a difference between the ZX and Z trannys as I dont know which this is. Thanks

Alright, another update. I now have power to pin 10 and still nothing. There are two wires hanging below the dash that seem to be coming from the ignition relay but arent connected to anything. The ignition relay has two white/red wires, they are both connected to the hanging white red wire and it has power. Then there is a blue/red wire on the relay that is connected to the hanging blue wire. This wire never has power. These wires are just hanging, not connected to anything and there are no wires anywhere around that seem they might connect and no they don't connect to each other. Remember, there is no fuel pump relay as it is hardwired. Ive gone through the FSM to no avail. Everything seems to have the power it needs, it just won't start

Injector cooling fan? I've never seen that on an EFI and it doesn't pull up through any searches. That specific connector gets power at two of the blue wires and connects to 2 other blue wires whenever the key is switched to "on". The green wire grounds to the middle blue wire. If I jump it it doesn't accomplish anything. Fusible links are in good shape. The fuel pump is on a switch. All relays except for the injector relay that is specific to the '78 came off a running '77. The ECU is off a running '77 280z. Pin 10 still has no power. There is power to the relays. The only other thing that comes up is under the dash on the passenger side, there is a light blue wire with no power that isn't connected to anything. There is a white/red wire that has power but isn't connected to anything. There is a green wire under the center console that has power but isn't connected to anything. There are three wires, a light blue, blue/red, and blue/white wire that were pulled up next to the fuel pump switch next to the hazard switch. The light blue one has power. No idea what the others go to. I wired them together and there is still no power at 10. What am I missing!? I mean, the injectors have power but they aren't spraying. Do I need to take them all off and clean them? From the experience I have, not all the injectors are going to fail at once.

Its in the engine bay, 5 blue wires and a green. I cant seem to find this exact relay in the wiring diagram