Electrical
Anything about the electrical system on a Zcar.
3,450 topics in this forum
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- 3 replies
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Does anyone know what the bulb part number is for a 73 240Z map light? I know the bulb is 5W, but I need a number so I can order it from a bulb supplier. MSA does not have the bulb in stock. Thanks for the info.
Last reply by SteveJ, -
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- 8 replies
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Hey guys, new member here, owner of a 78 280z for 5 years now. I ran into a problem that I need some help with. I've been having some electrical issues with this car since I purchased it. I'm nominally knowledgeable about vehicles to begin with, but I want to learn more. The problem Im having is that the battery isn't getting a charge or full charge from the alternator. I took it in and had the auto parts store check the alternator (while in the car) and the guy said it was sending 11.46v but only 30 amp output. He told me to clean up the terminals before replacing the alternator. Not that they really needed it, but I did so anyways. By the way, I myself replaced the cabl…
Last reply by nhines3, -
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Of course, the '76 we are working on has cracked boots, and in the case of the air regulator, a broken connector. My first question is are there any tricks to cleaning the connectors? the air regulator plug is definitey corroded, I'm sure there are others that are as well. My second question is, what is the best replacement conntector to use, and where should I get them? I want to solder/shrink tube whatever I use, I won't be using butt connectors in a fuel injection harness.
Last reply by rexz, -
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Help! "Z" enthusiasts! Checked most posts and haven't found this discussed yet, so thought I'd throw it out there and see if you've any suggestions about my weird idle issues. Car starts fine, but after revving it up to 3.5k, the tach starts floating at higher rpm's. When I get off the gas, it wants to die, then goes into a bouncing, revving/dying death throw. When I turn off the ignition and restart it, it idles fine again until I rev it up and then it does it's thing again. Replaced the distributor/coil, and found a bad tach wire and fixed it. Ran good for a couple of quick jaunts, but then started doing it again. Any suggestions would be/are welcomed. Thanks...
Last reply by adeedue, -
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I was replacing the ground wire on my alternator when I noticed there is a small green wire (maybe 18 gauge) coming off of the positive terminal that goes nowhere - its broke off. I cannot find a broken wire to reconnect it to anywhere. Any ideas where this should be connected to? Also, I see many discussions about upgrading a 240 alternator to an internally regulated one, what about the 280?
Last reply by FastWoman, -
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Are the turn signals for the 280z tail lights supposed to be above or bellow? Mine is setup wrong I think. Tried to find some videos of 280z turn signals for the rear but I found only custom LED light setups that implement the JDM or Europe style tails. these have an amber lens at the bottom of the red lens. Here is an illustration I did to show what I mean. The turn signals are barely visible so I'm thinking they are in the wrong place maybe.
Last reply by tymarbry, -
- 27 replies
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I got a call from MSA yesterday and they said they were having issues with a few ZXP's. After a little research, They discovered that the issue with the ZX alternator and the ZXP alternator adaptor was ONLY is the 73' 240Z's.... So if you have purchased a ZXP thru me or MSA and have had Battery drain issues. Please post on this thread. What year 240Z? What was the Issue(s)? (battery drain? Melting wires? what? Average Climate in your area of the world? Any other electrical mods that may have contributed to the issue? What was the solution? What did you do to fix it? (replace alt, ZXP, wiring?) Not looking for a discussion. Just the facts. The glue in the ZXP's melts bu…
Last reply by twofouroh, -
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My temp gauge was working fine until I worked on the car today. I put freon in the car and also had the finisher, finisher brackets and center air ducts out to check the condition of the evaporator and expansion valve. Could something have been knocked loose on the temp gauge during reassembly? It shares that pod with the oil pressure gauge and it still works fine. Coincidence or do you think something else just happened to break today?
Last reply by Ben's Z, -
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Last weekend I went on a winery tour with fellow TZCCVA members out in the Charlottevsille area of Virginia. Anyway, it was an uneventful trip (except for the torrential rain and flooding caused by that awful cold front) until I was heading home. Running along at 75-80 on I64 I suddenly hit a rpm ceiling of about 4000. I couldn't accelerate over 60 mph. I pulled off the road to check for scary stuff like fuel leaks but saw nothing wrong. The remaining 100 mile trip home was met with power then no power back and forth until I got home. My immediate suspicions is the 25 y.o. Allison ignition is starting to heat fail so I ponied up for a Petronix 1761 and new 40611 3.0 40k v…
Last reply by ezzzzzzz, -
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Ok going to make it quick and to the point. Purchased 72 240z with original engine and 280 dizzy and msd coil. Car ran good but would randomly shut off. No sputter just instant 0 rpm. Pull over and usually would start again within 1-5 min. Took to z shop, tech re wired coil. Previous owner had left ballast resistor and mechanic said that it coulda caused problems. Mechanic gave me a stock 280 coil and said it was more reliable. Car ran fine for a day then same problem. I swapped over to the 280 coil but still same thing. Read and read. Found out e12 80 module might be problem. Swapped over to a gm lx 301 type module. Fired up car and now won't start at all. Switched …
Last reply by Zed Head, -
Tachometer 1 2
by Robin260z- 12 replies
- 6.7k views
Hi guys my tacho isn't working either. I;ve read a lot of posts trying to figure out what the problem is. I;ve already read that i have a 4 wire tacho that isn;t original because a 260z normally has a 3 wire. But all the wiring is original so thats also weird. tha tacho gets good ground and 12 volt. The ignition signal is ok because when i disconnect the connector the car wont start because it is a circuit that has to be closed. So could someone give me the right electrical scheme for a 4 wire tacho or tell me how i can repair/ rebuild my tacho. Sometimes it starts to work for a few minutes but it can also dont work for a few weeks. Could it also be the resistor? where ca…
Last reply by LeonV, -
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My 76 280 is a wiring nightmare, i have no idea where anything goes. Dash was completely unplugged from a 280zx Swap.......................................... So was the entire underdash, rear lights, and engine harness. This was sitting in the back, i have no idea what it is or does also, if anyone could send me a link to a pdf or torrent of how the wiriing harness connects i would be extremely grateful, i'm not very good at reading wiring diagrams so a "follow the switch" approach would be best.
Last reply by 280,
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