Electrical
128 topics in this forum
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- 8 followers
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Hey folks, and tnx in advance. 1982 Datsun 5 speed Trubo. at cold start the car idles steady at aprox 1100 RPM. 10min later after it warms up i start to hear little miss here and there. the longer it runs, the more miss and rough idle starts to happen to a point that needle is all over the place. I place a vacuum gauge on the Fuel Reg hose and i see that at first its steady in the green but again once car is warm, gauge is all over the place form RED to Green. here is the interesting part, when i loosen the 2 screws on the distributor cap, and raise it up just a tiny bit, the idle becomes perfect (about 800 or so), the engine sounds prefect and the va…
Last reply by ira, -
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82 NA 280ZX. I have fuel, spark, but no power to fuel injectors. Crank angle sensor seems intact(wiring). Car has been sitting many years, has fresh fuel, no blockage in fuel rails. Other than Control Unit, what else will power fuel injectors? It seems hasty to pull the trigger on a new ECM, but as far as I can tell that seems to be the issue. I pulled the ECM out, seems clean, no obvious issues. Any thoughts?
Last reply by DC871F, -
- 22 replies
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I picked up a $6 voltage regulator to see if I could fix my old 1978 alternator. In removing the VR, the "sub-diodes" came apart (I read the FSM after the fact, it suggests holding the lead with pliers as a heat sink to protect them :mad:). But I think that they might have been bad anyway since the other diodes checked out okay. Who knows. The alternator charged fine, by voltmeter readings, but the charge light went on and increased in intensity with RPM, which seems like a diode problem. Would anyone know where anything about these tiny diodes and where a suitable replacement might be found? I don't really have anything to lose so any WAG is appreciated. I've atta…
Last reply by Zed Head, -
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- 21 replies
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Hello! I have a 1978 280z. My tail lights, dash lights, and side markers not coming on, on both sides. Headlights work. 1. I've replaced the stop light fuse with tail light fuse and the stop lights still worked. So that makes me think it's definitely not a fuse. 2. The stop lights still work even after changing fuse so that makes me think it's also not a grounding issue. 3. I've checked the continuity and voltage between the GW and GL plugs under the combination switch and got a signal (see attached photo for location) but no voltage 4. I checked the continuity and voltage at the tail light sockets and tail fuse and got a single but no volt…
Last reply by siteunseen, -
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- 19 replies
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Every few months or so I'm pulling the TPS out of my N/A '80ZX to find tiny amounts of moisture built up inside causing a slight miss at a specific RPM(1600-1800). Once cleaned out it runs like a golden chariot. I live in the rainy pacific NW USA where constant moisture and cold fog dominate most of the year. The car has been daily driven for the past several months while rebuilding my Jeep, so its exposed to the elements. Has anyone found a decent way to seal or otherwise prevent moisture from building up in the TPS while still allowing for future removal?
Last reply by Careless, -
- 17 replies
- 14k views
1978 280Z manual, 2 seat. I have had a continued problem with "systems on" AKA fuel pump runs, volt charge lite on, EFI relay goes on, when Key off. I first tested all EFI (under hood right side box) relays, all OK. Check alternator which was new-OK, seat belt warning lite ON, unplugged harness, checked key switch-OK. Removed key switch harness, still got same systems showing "ON". Would run down battery in few hours as fuel pump remained running. Note even with full charge volt meter reads low (4-6) but will creep up to 12 plus over time. Charge light remains on. Finally printed blown up FMS electrical skew's, ONLY common to all this stuff, more so with ign switch unplu…
Last reply by restorerestore, -
- 17 replies
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So awhile back I tried to jump start my 1982 280zx turbo. Foolishly I swapped the posts on the battery popping a fusible link which I replaced. I have also replace spark plugs, spark plug wires, distributor cap, rotor, and ignition coil. But I am still left with no spark. I feel like a huge doofus because if I had swapped the posts the car would be fine. Also I did get a new battery but it has lost charge because it has been sitting but I can jump start it without a problem using the correct posts this time to try and start the car but I am still left with no spark. I do know that a possible problem is the ECU. is there a way to test that and anything else going forward? …
Last reply by DstrbdSuperman, -
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- 16 replies
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Is any one out there knowledgable about the Crane Fireball ignition system? I have a 83 zx turbo I bought about a month ago.When I first got car, I had to tear dash and heater out and go through all wiring. PO had a dual battery system installed with fuel pump relayed through rear battery Ive got everything back as close to stock wiring as Ime able,not being too electrically adept myself. Ive got fuel pump operating through relay, as Iwasnt able to get power back to fuel pump through stock wiring, even though all relays tested good.Anyway, thats all solved.My problem now is that Ime getting no spark. Ihave a Crane Fireball HI 6S ignition system with universal magnetic tri…
Last reply by Chickenman, -
- 2 followers
- 15 replies
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The car: 1983 280ZX Turbo. When I run the vent/AC blower fan for a few minutes, the fan dies. This happens whether or not the AC is on. If the AC is on, the compressor is still engaged but the fan blowing the air inside just dies. No fuses blow, but the car has to sit for an hour or more before the blower will work again. Since no fuses are blowing, this has the appearance of a component that's heating up and failing, then working after it cools off. But which component? Or is my reasoning faulty? Ideas...?
Last reply by Pilgrim, -
- 1 follower
- 15 replies
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Ok as some of you know I'm trying to steal the 79 EFI to run on my 71. I've been staring at schematics for awhile, looking through the FSM Engine electrics and EFI sections of the FSM, but I can not figure out what the yellow wire from the body plug leading into the EFI relay does. The black and white and green wire are switched power. Assuming to run to the ECU and one to the Dropping resistors. I checked voltage to the yellow wire while the car is running and nothing. And nothing during cranking only and it's not going to ground. So I let it run and cut it while the car was running. No change. Turned the car off and back on no issues. The other thing I not…
Last reply by JSM, -
- 2 followers
- 14 replies
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I took out the dash on my 83 ZX 2+2 and I disconnected the dash harness from the main harness and I also took out the wires from the taillight, fuel pump, everything. Once I put the dash back in and wired everything up the car didn't start. The headlights and lights work for the dash but the gauges and accessory lights on the dash, don't turn on at all. It's like when I turn the key, nothing happens not even the fuel pump turns on and the fuel pump wire and fuel pump wire relay are plugged in.The battery volts on the dash gauge works but that's it. I looked at the ignition switch and the red/blue wire is cut. I read somewhere that the wire connects to the dash harness but…
Last reply by max280zx1979, -
- 3 followers
- 13 replies
- 1.7k views
Need a headlight washer pump for my 1980 280zx , any info/source would be helpful Thanks
Last reply by H. Roeckelein,
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