Electrical
Anything about the electrical system on a Zcar.
3,454 topics in this forum
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First time problem. When key goes to accessory position, everything seems to work: radio, interior lights, Interior fan. When I switch to “on” position, all interior lights dim. When I turn the key to the right, The starter never attempts to turn over and all electrical except for the clock shuts off immediately. If I remove the key for about a minute, I can put the key back in and have the same accessory position items powered up. Of note, even in the accessory position, if I draw an amp load (for example the power antenna or turning the fan up) everything will shut down again for a couple of minutes. It’s like anytime I apply an electrical load a breaker is breaking a…
Last reply by Captain Obvious, -
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Hi guys, Odd question for you. One of my tach illumination lights died (the other 4 still work). A week later, the left indicator dash tach light died, and today the right one died (the front & rear exterior indicator lights all work however). I tried to remove the tach but 90 minutes later I couldn't get it out (on account of the dash cap's lip that surrounds the gauge. I also was able to unplug the 2 general light connectors behind the dash after a bunch of fiddling hoping to see some corrosion, but they look brand new. I also took a look at the bulbs, and they aren't burned out. Anyone have any other ideas? -chase
Last reply by chaseincats, -
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So I was working on a customer's 280Z today, and I managed to isolate/solve a couple of his electrical issues, but there is one with the parking light circuit that I haven't been able figure out quite yet. I had to replace the headlight switch because his old switch had heat damage from the headlight circuit overheating. The pin that operates the rocker would no longer stay in place. I had a spare switch that I needed to re-solder the parking light wires to the switch body. The switch operates normally, but the parking lights won't come on. I checked the resistance of the green/white wire to ground. It was about two ohms even with all of the side marker bulbs ou…
Last reply by Obie 280Z, -
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Hello, I would like make sure I am getting the proper voltage to my ignition system. I have the stock set up with the two post ballast resistor. Here are my measurements: Ballast Resistor: 1.6 ohms Ballast Resistor: 10.9v going in an 5.1v going out Coil: Primary 1.7 ohms Secondary 8.95 ohms Coil (Car Running): 7.6v on the positive tab and 3.8v on the negative. Can someone confirm what voltage/ resistance I should be getting to the resistor, from the resistor, to the coil, and from the coil? Thanks for the help, Bill
Last reply by Captain Obvious, -
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I’ve noticed that the Engine Coolant temp and the oil pressure read high at random intervals. If I come to a stop/idle the oil pressure can be up to 45psi, when driving around 35mph it can be up to 55mph. The water temp goes from being in the middle, to sitting on the right of the gauge. originally I thought the issue was a problem somewhere in the cooling system, or that the oil system had a blockage. (Briefly inspected to make sure it was not the source of problem) I was thinking perhaps this is a grounding issue, I’ve noticed that the voltmeter kinda waves and flutters 12v-13v. Has anyone seen an issue like this? Ive started tracking the car more, and re…
Last reply by dutchzcarguy, -
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anybody know who sells the best led bulbs for a 1974 260z? and which ones to buy . I saw on the super bright site that they sell different lumens as far as the brightness. should I go with there recommended ones or the brighter ones. thanks
Last reply by kully 560, -
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Greetings I don’t know if buzzer need to sound off when passenger door is open. Forgive my ignorance. when key is in ignition, open driver door, buzzer sound off. However, buzzer didn’t sound off when passenger door is open. I set the dome light to be on if the doors open. Dome light is on when driver or passenger door is open. wonder if it by design or some loose wires regards
Last reply by 240zadmire, -
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I have a 1977 280Z. I have a question to the forum: Are there any weak points of the electronic distributors in this car that would cause engine to stop/loss all power suddenly and then restart and run well after a few minutes and a few cranks. I have a new Accel coil, new ignition relay car runs excellent (until this event occurred two-times on short drives this year). mechanic said possible distributor (weak optical sensor?) issue during warm/hot weather heat under hood. Said this was not totally uncommon. Is there a common wear/weakness issue for this electronic-model distributor??
Last reply by Zed Head, -
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Hi car is early 1977 280z I recently put back the car after take it out for painting interior, engine bay. When turn ignition to on I hear no sound on the fuel pump. what I did: - connect direct power from battery to the 2 wire on the passenger side and hear fuel pump. Which means pump is good. Check continuity from the wire to the relay connector is good. - check the continuity base on the fuel injector bible on pin 20 against ground, no continuity. - ignition coil and spark plugs has electrical. funny thing is that both the pins of the cold start valve are positive. I connect positive pin from the voltmeter to bat…
Last reply by SteveJ, -
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I have a 1973 240z, my problem is I have no RH rear tail light signal flashing, the same bulb is used for the 4-way hazard and work OK when hazard switch is activated. RH front park lamp flashing OK when I signal to the right. I have replaced the T/S flasher and check and replaced all bulbs on both sides. Hazard flasher is working on all four corners when activated. LH front lamp and LH rear tail lamp signal is working OK. All the bulbs works fine when I apply the brakes. If anyone have any suggestions, I would appreciate the help. Thank you for looking!
Last reply by SteveJ, -
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So you're on the road at night cruisin' in your Z. Slowly you notice that your headlights are getting dimmer and dimmer. You check your ammeter or voltmeter and see that your system is in discharge mode. Oh crap. Belt fall off? I hope so. Nope, still there and tight. oh oh oreo... Well you got that "big" 60 AMP internally reg'ed ZX alternator just a few month's ago, but I guess it gave up the ghost. Trouble is you're in Podunk Kansas and the local AutoZone doesn't have one in stock and can't get one for four days. Now what? Me, I'd rather have a common alternator, one I can get anywhere. And I mean anywhere. About the only sane choice is the GM 10SI body alternator. I…
Last reply by madkaw, -
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Does anyone know the proper name for the connectors used on the z(e.g. weatherpak, Deutsch, packard 56,etc)? I am looking to see if they are still produced as I don’t want used connectors nor donI want to change. Thanks in advance!
Last reply by SteveJ,
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