Electrical
Anything about the electrical system on a Zcar.
3,454 topics in this forum
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I am installing a 77 wire harness into a 78. The harnesses are different and am wondering if the ECU from the 78 will work? The main difference in the harness is that the early 77's had the underhood relays positioned elsewhere, I think under the dash on the drivers side. Will using the 78 ecu work?? Also would a 2+2 harness be any different?
Last reply by az240z, -
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Exchanged the original dash bulbs with new ones. Works great except that when I reattached the lightbulb sockets into the gauge housing several of them just would light up with out twisting or turning the socket. I have all of them lighting up now, when I turn on the light switch, but if I drive over a rough road a couple of them (speedometer and tach) go out. I then need to try and twist the socket till it works, but I will have the same problem next time I drive. Are there any replacement sockets available to replace the current ones or is there any suggestion using my curent ones? Thanks.
Last reply by twsutt, -
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Hi everyone, I have a 76 280z and recently the windshield wiper motor stopped working. I went to click the wipers on, and they went up maybe 1 inch, and then stopped and would not go anywhere. No matter what setting the switch is on, they stay in the same spot. If I try and move them by hand they're very resistant to moving. I checked all the fuses in the fuse box on the passanger side footwell, and despite there being a fuse for wiper motor or something that was blown, that did not fix my problem.. infact it wasnt even correctly labeled im assuming because it turned on the light above the heater controls, and made my alternator charge gauge work, and would never turn off…
Last reply by Indey, -
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In the never ending battle to get 9070 back on the road we are working on the lights. Put the relay kit and replaced every bulb in the car. Turn on the marker lights and they are great, rear side, front side and front. Nothing on the headlights. I can ground one of the wires at the turn signal switch/dimmer and they will come on. But if check the wiring that the bulb would plug into on the driver side (either side actually) I get 12v at all three pins. We swapped the dimmer and the combination switch (which fixed the wipers) and still no headlights. I have searched and found a lot of stuff but when we check coninutiy everything checks out. First where are all…
Last reply by Richard Oben, -
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I had a bad regulator on my '77 (bouncing volt gauge) and ended up buying a new one off of BD. Oddly enough when I took the old one out, one of the wires from the 6 connector was not soldered to the regulator and was cut short. I though that was odd, so I jumpered that wire and it sounded like it may have been the cold start injector, although I am unsure. I received the new regulator from BD and installed it today. When it got power, the regulator let out a bug puff of smoke. Turns out that the wire that burned out was the same wire that was cut short and not soldered on the previous regulator. The good news is that the gauge is steady now at the appropriate voltage (f…
Last reply by 503Alex, -
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Do Datsun Z's have clips or anything to hold the injector plugs on? I was replacing some fuel hose today and I noticed one had come off. I then realized none of the plugs have clips or anything to hold them in and it takes almost no effort to pull them off. I Elec. Taped mine. But there must be a better way?
Last reply by TomoHawk, -
- 29 replies
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Hello All. I am constantly worried that my car will catch on fire someday due to the harnesses Ive been hearing about, being old and overloaded. I plan on rebuilding the harness to include relays but Im afraid I will mess things up badly. My question though is, Are premature headlight(s) failure a sign of a bad headlight harness? I just bought New headlights (sylvania) for my 280z and I only got around to installing one so far. The one I installed though has burned out already after like a week of use. The headlight that I left in and didnt replace is now brighter and seems fine. So whats going on here? Thanks
Last reply by tymarbry, -
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Guys, I have finished painting my 1978 280z, i'm in the process of putting everything back together. I have fixed several lights that didn't turn on before like the center light, cigarete lighter light and gauges lights. some fixes were simple enough to just change the light bulbs and others I had to clean the connectors. My question is should the hazard light (the light inside the car where the hazard switch is) be on when you turn your head lights on, or should the light only light up when you turn the hazard lights on? Every thing seems be working fine, my turn signals, hazard lights and my headlights, I just want to get this clear before I put everything back together…
Last reply by TomoHawk, -
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I am rebuilding a 1978 280z that was stripped many years ago. At the moment I'm trying to get the relay shelf and relays together. I think the 78 280z uses 4 relays for a 5 spd manual: 1. A/C relay 25230-4205 4 pin connector 2. EFI main 25230-89970 4 pin connector 3. fuel pump control 25230-8996 5 pin connector 4. Fuel pump 25230-H7200 4 pin connector The picture shows the relays. I don't beleive I need the inhibitor because of the manual tranny. The question I have is, in looking at my old relays 3 look alike. 2 are marked 25230-H7200 while they other can't be read. Does anyone know if these relays can be used for a…
Last reply by sblake01, -
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I am looking into purchasing a '71 240z and the current owner of the vehicle said that the car use to shut headlights off randomly and that the fuse box would constantly heat up. To me this sounds like a short somewhere within the wiring harness and COULD be fixed. However, she is recommending a new harness (which I can't find around). I am no master in wiring what so ever and I am brand new to the world of the Z. I would love some input by you guys to tell me what I could be in for IF i pick this car up and what I should do to fix any problems with the wiring. SIDE NOTE: The owner (older female) said that her and her ex were fixing the car up little by little and tried t…
Last reply by HermanM, -
- 5 replies
- 6k views
I have searched endlessly for information on a headlight relay writeup for a 280z (my car) or even a 260z for that matter. Only the 240z. And from the responses I see on forums is that the 240 harness will not work for the 280z. So can I still use the guides online for making a relay upgrade for my 280z? There are like 3 different versions that I have seen, maybe more can anyone point to the most reliable or easiest version? Ive found write ups here: http://www.zhome.com/DaveRelay/DaveBuild/DaveInstruction.htm http://zhome.com/ZCMnL/HeadlightRelays/JudkinsRelay.htm I thought I knew more off the bat, some more easily understood than others.
Last reply by tymarbry, -
- 10 replies
- 8k views
I hate my fusible links because they keep burning up damnit.. and they are soo corroded and nasty.. i decided to convert it.. I picked up the kit from Pallnet.. similar to the setup BLUE sells.. in the Atlantic Z car club.. anyway.. cheap.. and easy to do... I used a Maxifuse setup... and an MTX fuse bus!
Last reply by FastWoman,
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