Electrical
Anything about the electrical system on a Zcar.
3,434 topics in this forum
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- 14 replies
- 11k views
I've scoured the forum to find an answer or at least a similar problem to mine but to no avail. So here goes: I have a 72 240z currently running with pertronix ignition. It runs great excecpt the back of the ignition switch gets hot. A few years back i had the same problem but didnt catch it in time and a wire going to my ignition switch got hot and melted the plug on the back of it. The morons who replaced the plug cut the wires instead of pulling them out of the burnt plug and then replaced the plug. Long story short, i had to replace the pertronix back to points. After the car sat for some time and when I had the money to replace the pertronix I did. Now I'm having…
Last reply by rar7775, -
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I'm trying to fix my night lights and i found the reason for the problem ( burned switch contact) but when I'm trying to hook up it up to the headlight switch by adding a relay hoping it would solve the problem. BTW I didn't even get a chance to hook the wires together to my headlights switch and now my headlights went out. I don't know why it no long work...now I'm trying scratch my head to diagnose the problem. Can anyone help me. I don't know a lot about electrical but just enough to hook relay to headlights. I did manage to took some pics to see it anyone can help me.
Last reply by SteveJ, -
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OK - this item is on the firewall of my 73 240z, on the passenger side near the battery. As you can see it is looking every bit of its 39 years. My question - what is it and what does it do? Thanks for any help you can provide!
Last reply by SteveJ, -
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To all the electric gurus, I need a pulsed negative for my Speedhut tach. Can I tap the #4 pin at the ECU to achieve what I need? Is this a reasonable solution? Suggestions? I have the FSM and a color schematic of the electrical system but reading an electrical diagram is not my strong suit. Well, ok, I'm a wiring theory moron but more than capable of soldering and heat shrinking. Thanks! '78 280z
Last reply by FastWoman, -
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So I've been trying to wire this new Mallory Unilite into my customers 75 280Z and I'm a bit confused as I'm finding conflicting information. Along with the Mallory I'm also upgrading to the Crane PS20 coil. Motorsport Auto says to retain the factory ballast with this coil. I did some quick checking and it doesn't appear that any of the posts on the factory ballast get less than 12V with the key in the on position. Am I wrong on this? Also I've read that you must run a ballast that drops the voltage down to the 6-8V range to keep from frying the module on the Mallory...so how do I make this work with a stock ballast that doesn't seem to be cutting the voltage? My new…
Last reply by RPM Resto & Custom, -
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Im trying to rewire my brake light and wipers. The fuse block for the wipers is melted on that fuse. Wondering if the relay or motor is more commonly the suspect. Its the the right side of the fuse that is melted. Fuse intact of course. And where might that little relay be located?
Last reply by Quinn'Z, -
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Hello everyone. I just joined this site. I own and operate a restoration shop in central NJ and do a lot of work for members of the NJ Z Club. I ran into an issue today that I'm not sure how to remedy if it's even possible. I have a customer's 75 280 here that I installed a warmed over engine into last winter along with restoring everything visually. He has it back to upgrade the fuel and ignition systems a bit. I ordered up a new coil, the Crane XR3000, and Mallory Unilite distributor for the car and was getting ready to install them today. However there don't seem to be any brackets in the XR3000 kit that will install the correct optical trigger in place of the st…
Last reply by RPM Resto & Custom, -
- 4 replies
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Just got Pertronix Ignitor 1761 and try to install onto my '72 240z factory dizzy. I try to follow other thread "Pertronix Ignitor 1761 install and coil evaluation", but when I open up my dizzy, it looks different from 280zx dizzy. I could not figure out which wire I should remove. Could someone give me an advice? Thanks, tamo3
Last reply by tamo3, -
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Anyone have a junk harness that they wouldn't mind chopping a little more? I'm in need of a nice ignition switch plug with about 6 - 8 inches of wire on it. If you can help me, please give me a pm/shout/email. Thanks much, Bryan Dat240zg 240Z #248
Last reply by SteveJ, -
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There was a thread sometime back on cold start troubles and whether it was carb or electrical etc etc. My 73 240z has gotten harder and harder to start when cold. Cold is a relative item here, south of the Mason-Dixon line, it has only been below freezing a couple times this year. Nonetheless I went out to drive the z yesterday and it would not fire off. It would start to fire, but would not catch. Finally, I had killed the battery and quit, got into the 1980 TR8 and went to work. I got new SU's from z-therapy last summer and they have been, otherwise, great. I redid points plugs, wires, condensor, etc last fall. The only virgin thing in the car from when I bought …
Last reply by jaltman, -
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Hi all. I've recently got my hands on a 1970 240z 10/70 build date. Its missing the hazard flasher switch. Does anyone know the wiring for the flasher switch so I can try and make one or know if I can adapt a later one to fit? Also trying to work out the heater blower wiring, mines been slightly butchered when fitting a stereo at some point and A/C, has anyone a decent wiring diagram for the above? I've looked through haynes but it doesn't seem to line up. Thanks all.
Last reply by Jason240z, -
- 5 replies
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When I broke my car down there was a rubber cap on the rear of one of my headlight bulbs but not the other. It was between the plug and the light with the 3 prongs going through it to form a nice seal and protect the prongs from water. I can not find one of these at any auto parts store or at MSA or Black Dragon. I know other cars use these so I don't think it is a Z specific part but could someone steer me in the right direction?
Last reply by KAL7467,
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