Electrical
Anything about the electrical system on a Zcar.
3,450 topics in this forum
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- 13 replies
- 18.3k views
Hello all, Can I wire the fuel pump on my 76 280z through a seperate switch from the battery to the pump for test purposes to get the engine running? ..heres why.... I only get power to the fuel pump while cranking..i understand this is correct and is due to the airflow sensor and that the engine only turning will produce power to the pump...all good with that. Well mine does not seem to continue to run "the pump that is" and thus no fuel to the engine, Ive given up. Since I will be doing a full restore on this car in phases and the fuel system will be replaced I'm not going to try to nick pick it apart but wanted to get it started to check through some things, I know it…
Last reply by 280, -
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- 1 reply
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I had an apparently common problem (I've seen 2 or 3 threads about it) where the turn signals, brake lights, and gauges are all inop. I have had problems with the ignition switch (has to be just right" for the starter to engage:), so I took a chance that that was the issue...it was. If the switch is moved to the right (er, wrong) position I lose all the aforementioned functions. I just bought a used switch for a '72 on Ebay this evening, so a replacement is only a week away...it's working for now. I found several hillbilly wiring mods to the steering column that I will try to return to stock. Later, guys...
Last reply by ZCurves, -
- 16 replies
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Hi Everybody I have a windscreen wiper question. Beside the slow operation of my windscreen wipers which seems to be standard on a 35 years old 240z I have 2 additional problems! First the wipers does not park when I turn of the wipers – they just stop where ever they are! And second when I run the wipers in intermediate operation the wipers only covers a little more than half the distance – for example if I turn them on (in intermediate operation) when they are parked at the bottom of the windscreen they go up and return something like an inch back from the “verticalâ€� position – after what seems like forever they go down and returns up about two inches – fo…
Last reply by EScanlon, -
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Just when I get my 77 running again another electrical problem! Had a harness connector come unplugged that took a week to find. Had Dave rebuild my combo switches. Then I wired up the headlight and parking light harness upgrades from Dave. Took the car out yesterday for a cruise and 5 minutes into it my Z broke down. Was accelerating at a great rate of speed and all of a sudden it was as if I turned the key off! I coasted to the side of the road and parked. I tried the key and nothing, nothing at all! Here we go again I said to myself. I checked a few things I thought it might be and found nothing. Finally I called Hagerty's (free towing) and had it towed to the house. T…
Last reply by FastWoman, -
- 24 replies
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I have read several of the threads on no spark issues. Even the recent one where there was a short in the dizzy. The car I am working on ran a year or so ago. Went to start it up but no spark. Pull off the coil wire try to ground, no spark. Get out volt meter and have 12v at both terminals on the coil with the switch in the acc position. I read in one posts maybe by Fastwoman that the coil sparks when the "-" terminal is grounded. I tried that with a direct ground and a manual push button ground. Thought the coil might be bad (MSD). Tried another coil (unknown condition) tried a third coil (unknown condition) No spark on any of them. Thoughts, anyone? Did I understand cor…
Last reply by Patcon, -
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So I've had my Z for a little over a year now and I've finally decided to address my lack of reverse lights. I upgraded my trans to an 83 and it has the sensor/switch I need to plug into....however I can seem to find the wires in the harness on the car. I'm not sure if they were wrapped up by the PO or cut or some other unknown fate. Does anyone have any recommendations on how I can go about fixing this besides taking it to a shop and paying them to cut my Z up. And I have a 71 240z.
Last reply by OniZ, -
Morning all. I have a 240Z which I have been restoring over the past 2 years. The car came to me in various boxes. Its a late 73 240z. I have now got to the point of getting the electric back in. Engine bay loom is back in. I have the loom through the firewall and sitting on the floor with a various collection of multi plugs.. blue,black, white etc which I know connect to the dash loom and the rear loom. What is confusing me somewhat is is the relay panel. nothing was connected and nothing labeled. Has anyone a picture of the actual relays that should be on there and which wires connect to what. One or two are obvious as the wire match up. others not so. The last thing…
Last reply by That-hurt, -
- 10 replies
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I recently was cleaning out under the passenger area and center console of my Z and ran across 2 things that I'm unsure of. The first was behind the console and is a twisty potentiometer type knob that's just sitting behind the console, and it doesn't appear to affect anything seen here The other is a connector that was unplugged that sits under the passenger side seat. The connector appears to go together, but im unsure of if it actually does.
Last reply by Willoughby Z, -
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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, -
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, -
- 4 replies
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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, -
- 6 replies
- 3.1k views
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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