Electrical
Anything about the electrical system on a Zcar.
3,450 topics in this forum
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I recently changed the head gasket on my motor and so had most of the big items in the engine bay removed. 72 240z. On getting it going again I broke down due to a flat battery and can remember the turn signals were still working at the time. At this point alternator wasn't charging anymore I guess. I charged the car up and drove at night where it rained heavily and almost broke down again due to flat battery and from then on my turn signals have stopped also. I'm really bad with electricals and have no idea where to start looking. I'm thinking it's probably best to get help on finding out why the alt has stopped charging. The alternator is only 1yr old and is the ol…
Last reply by MKI4EVA, -
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]Just thinking out loud here, air, fuel and spark are all you need to make an engine run. Lots of air, K&N filters with no obstructions. Fuel, even if the new fuel pump wasn't working and it is, the float bowls are full, I can see it with the jet cover off so there would be enough fuel for a 1/2 min. or so. Spark, it starts and runs at high rpm, could there be some condition where the spark is less at low rpm or after the key is released? To see the whole story, http://www.classiczcars.com/forums/help-me/49271-engine-will-only-run-above-4000-rpm-carbs-timing.html#post429569 Thanks, Chris
Last reply by SteveJ, -
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Has anyone ever written up a detailed account how to installed a automatic locking system on Z. I looked allthrough the threads really can't find a detailed written up step by step. Specify which hardware how does it all hook up. How did they drill the hole from through the door jam. You know a real detailed right up. Here are some of the hardware that I've been recommended to use. Viper 211HV (P/N# 412V) High-quality universal door lock actuator - two wire with mounting hardware. GALAXY DLRM DOOR LOCK RELAY KIT I have lots of questions like what's the difference between the two wire accelerator and a five wire one, can't find anything about the differences. I can do …
Last reply by Yellow78, -
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Problem: I checked continuity between terminals 6 and 27 at the ECU - it failed Diagnosing Attempts: 1) I checked the continuity between terminal 6 and 27 on the Air Flow meter - it passes (sensor is good) 2) I jumped terminal 6 and 27 on the harness connector and checked the continuity - it passes (harness from ECU to Air Flow meter is good) Therefore it must be the corrosion between the harness and the AFM. 3) I replaced the connector on the harness with a brand new connector and all new terminals. I cleaned the male terminals on the AFM and lubed them up with dielectric grease. And it FAILED continuity between terminals 6 and 27 when measured at the ECU. What is goi…
Last reply by rsperegrin1, -
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I found a speaker wire tapped into a blue wire of the Hazard SW Harness. It feds to one led on the Brake SW. While one of the Y on Blk Break SW wires dangled and the other was connected to the Break SW led. I've tried the following combinations and I can not get the break lights to work: 1) Spk wire from Harzard Harness and one Y on Blk wire = make the rely click every 5 seconds but no brake lights 2) Spk wire from Harzard Harness and the onther Y on Blk wire = no break lights 3) Both Y on Blk wires to the break SW = no brake lights I attached a picture for reference. Any thoughts? Thanks RobertBrake SW.pdf
Last reply by SteveJ, -
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Hello, I'm struggling at tracing one white on green wire and one melted black wire, in the FSM & posted wire diagrams, that have been broken. They are dangling under the dash. I attached a picture. Can you take a look and offer any suggestions? Thanks Robert Wires Under Dash.pdf
Last reply by SteveJ, -
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It's been over 4 years since we started this project, and now it is availble for you! Buy Datsun Parts | jdm 240z parts | Vintage Parts | 240z Parts | Datsun 240z We have US type and Euro Type like we used to have. List price is $795, but We have special opening price at $675/Set. Once again, this is very limited production.
Last reply by esprist, -
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found some much older threads about this, but thought i would check for some fresh advice. My 70 240Z ammeter is either jumping around between 0 and 45 or its pretty much pegged out. when its pegged out my interior lighting is nice and bright, but the headlights don't seem any different. and it always runs the same. I've just replaced the voltage regulator with a unit from the z-store a few months ago, because i was getting 20V when i was checking the blinker wiring. Now the battery isn't holding a charge ( i'll take it down to be tested tomorrow ) - could that be causing my problems? i checked the voltage at the alternator and it was about 12.8V at idle. thanks, K…
Last reply by SteveJ, -
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I'm going to use this diagram to wire in a new to the car fuel pump but I'm not sure what size of fuses to use. I would appreciate recomendations from those who have a handle on the theory, I'm a practical guy. Thanks, Chris
Last reply by grannyknot, -
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Hi, so I just finished rebuilding the engine on my 1973 240z and it turns over, but no start. Its getting air and fuel so it seems logical the only reason its not starting is the spark. My car has an MSD blaster 2 coil and an e12-80 module. We used the multimeter and determined that both the positive and negative side on the coil are getting around 12v, is this right?? Same thing goes for the b and c on the module. I am assuming the negative is supposed to be grounded, so am I missing a connection on the wiring harness? Or is the module messed up? Thanks for the help! I have it hooked up like this diagram:
Last reply by yoshi_w, -
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Can someone tell me which wire they used for the constant power? Before I tap a wire not in the general area in where the stereo sits, I was wondering which wire other Z owners were using.
Last reply by Captain Obvious, -
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So... I'm looking over the wiring diagram trying to figure out the cleanest way to get an always hot voltage line to my new radio install and I see these on the wiring diagram: Anyone know what these connections are all about? I went to the garage to see if they really exist, and they did (at least on my 77 they did). They are present but unused and are located above the passenger's right knee above the relay bracket. Lo-n-behold, one of them is hot at all times just like the diagram says it should be. So what's the deal? Was that some option that I don't have? Was there a factory electric fan installed in some cars? It's on the wiring diagrams for 76, 77 and 78. …
Last reply by SteveJ,
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