Electrical
Anything about the electrical system on a Zcar.
3,454 topics in this forum
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Could some one provide a photo of the connection point for a stock coil noise suppression condenser? I'm not sure if it connects to the primary terminal of the resister block or the black with white wire near the engine harness/coil connector that accepts a bullet connector. Thanks.
Last reply by dat260, -
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- 2 replies
- 675 views
I got back from Mid Ohio vintage racing, and I noticed that one headlamp was out. I fund the problem: the one connector on the passenger firewall (it's a green one) was bumped by the storage container that I keep the spare stuff/junk in. I just moved the connector shells a nit, and the lights worked again. I'd say this is a reminder to make sure you have those wiring shields in place and in good condition, to protect those important connectors that carry the signals from the steering column-mounted controls. like headlamps & turn indicators.
Last reply by TomoHawk, -
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I have a question for the electrical experts: I bought a Beck Arnley aftermarket ignition switch to replace the 40-year-old OE switch in my '70 Z. Seemed like a good preventative maintenance step, with the steering column currently out of the car. However, I've found puzzling difference in the operating logic of the two switches. It has to do with the switches' 'R' circuit, which I'm pretty sure means, 'Resistor' (as in, ballast resistor for the coil/tach circuit). With input power applied to each switch module by way of the 'B' (battery) terminal and output monitored at the 'R' terminal, this is what I find: Key Position "R' - OE Switch…
Last reply by Zed Head, -
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I'm finishing up the wiring as I near the end of the restoration of my '76 280z. There is a single black wire with a spade connector on the ignition switch. Any help on where it connects? You guys have been a great resource so far! Thanks!
Last reply by Reaves76280z, -
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- 5 replies
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When I purchase my 240 about a year ago, the previous owner gave me a big box of extra parts. Included in the box was 2 clocks, 3 Amp/Fuel, and 3 Temp/Oil. It looks like there are a few from a 72' 240z and some from a 74' 260z. See picture. I was looking for some assistance on what to do with them. The previous owner didn't think that they were working, but based on his overall lack of knowledge for the car, I think i'd like to test that theory for myself. Can someone give me some insight on how to go about testing these? Secondly, what does demand look like for selling these? I see some on ebay ranging from $30 to $100, depending on the gauge and condition. If …
Last reply by Mark Maras, -
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Hi everyone: I have my headlights on a 5 pin relay with 87 +12v battery (with a 10A fuse on each), 30 output to LB/HB, 86 headlight on/off switch, and 85 ground to LB/HB dimmer. I noticed my rear side passenger marker light was out so I replaced it. But when I switch on the headlights it blows the 10A HB fuse. However if I replace the 10A fuse and put back in the burned out bulb into the rear side passenger marker light socket I don't blow the headlight 10A fuse when switching between hi/low beam. Don't the running lights route through the hazard switch and the headlights through the combo switch? I don't how how the headlight and running light would short/open …
Last reply by 882993md, -
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I am just about to complete the installation of my dash on my 1976 280z. I have almost all my wiring connections completed. There are two white wires located beside the ecu on the drivers side footwell that I can't figure out where they go. Can anyone give me any help? Thanks.
Last reply by Reaves76280z, -
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- 2 replies
- 836 views
I am experiencing an issue with the emergency brake light at the dashboard. It does light up when i pull the emergency brake lever. However if the lever is down it lights up dimly on the dashboard. I already topped both of the master cylinder reservoirs with DOT4 fluid and the light is still showing up at the back very dim. I did notice that there is female cable connector attached to the terminal of the sensor underneath the master cylinder. Do i need to clean this sensor? something is not grounding properly i believe. Anyone??
Last reply by Johnny wick, -
- 3 followers
- 13 replies
- 3.2k views
I find myself reaching out to this awesome community once again. I have a 1974.5 Datsun 260z (Oct 1974 build date). Two weeks ago all was right with the world. I'd had a nice afternoon of driving the Z. I stopped to fill up the gas tank and when I started the car back up none of my gauges were working. Nothing but the speedometer (it's a mechanical connection). Fast forward to this Saturday an my battery alone will not start the car. I get a jump start and try to make it home. It's night and I have my headlights on. By the time I make it approximately 10 miles to my home my headlights are barely visible. Here are my questions. Do you think that the gauge issue is c…
Last reply by zacny77, -
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- 6 replies
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Ok, 73 240Z, original style distributor with Pertronix I. MSD box crapped out on me a couple years ago, but I wanted multiple spark again. Picked up a used crane Hi-6s. Got it wired up per Crane instructions, works but the tach reads high at idle (like 2000+ RPM, and when revving higher starts going higher, then drops, then jumps. Never stays at what sounds close to actual RPM. I tried the leftover MSD tach adapter i had (#8910), no dice. Ordered TachMatch tach adapter and am getting the same result. If I wire either one according to the old Crane tach adapter instructions, the car won't start. Moved the adapter red wire to connect to the green/white, car will fire but w…
Last reply by BadDog, -
- 3 followers
- 31 replies
- 9.7k views
I am thinking of having a kill switch installed in my 240Z and wanting some advice as to the best route to take. It sounds like an ignition/ starter type might be better than a fuel pump cut off switch but I am asking for opinions and info. On the pros and cons associated with both methods. Are there electrical problems related to the ignition cut off switch? Any insight or personal experiences are very much welcome. Thanks. Bill
Last reply by TomoHawk, -
- 3 followers
- 7 replies
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I have a 1972 240z, and the guy I bought it from got a viper security system and a beefy sound system wired in (very poorly might I add). I need to rewire a lot of the engine bay and the wiring diagrams available are not helping, a lot of wires are spliced and replaced that don't match up or are just taped off and lead nowhere. If anybody has a diagram of all the 10 pin connectors that are located underneath the passenger side of the dashboard it would help a lot, or if anybody has any self made diagrams that are at all related to engine bay wiring please post them, anything might help me out.
Last reply by polybius11,
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