Electrical
Anything about the electrical system on a Zcar.
3,435 topics in this forum
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Hey guys , I’m installing the 123 ignition on a customers car and he has automatic transmission . This is a 2/72 . I’ve been looking at schematics and I’m trying to educate myself on inhibitor switch’s and the rest of the workings of the auto trans . I don’t have a FSM and I’m using a Haynes manual and it doesn’t cover the electrical side of the auto trans . I just ordered a FSM for the chassis on S-30 and hope that help. My current concern is Red/black wire that splits to the two blacks - going to coil - and distributor . I would think that these are part of the inhibitor circuit so I need to tie these into the circuit with the 123 ? Are these grounds once all …
Last reply by Reptoid Overlords, -
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I learned something interesting in another thread about Nissan's move to electronic ignition systems, and thought it might be interesting to collect some stuff here. Nissan went from points to electronic ignition in 1974 with the 260Z. The coil still used a ballast resistor to limit current at long dwell times (low RPM). Spark gap was still specified at the gap used for points. 1975 and 1976 used the same basic system, an electronic module, a ballast resistor, and a coil, with spark plug gap set to the smaller points system gap. 1977 used the same basic system but opened the gap up to about .040" instead of the old ~.035". 1978 got rid of the balla…
Last reply by Captain Obvious, -
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Hi all sorry for being quiet so long. i had some work and family issues. I was able to get the car started. I still have some issues though. 1. it is idled WAY too high. Need some advice on that. have a short video so you can hear it. not sure if its still a timing issue, carb issue or what. i cant tell you the RPM bc the gauge isnt working. After a LOT of research i found that the ballast resistor is the likely culprit. i left it attached even after i put in the protonix ignition. Still not sure exactly how to correct it but i think this may be issue. 2. the fusible link on starter. Something is wrong. I keep burning through these. After the v…
Last reply by SteveJ, -
- 5 followers
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Which electrical tape do you prefer for wiring harness repair/maintenance? Please add the reason(s) for your preference. Also, please let me know if there is an alternative choice which should be added to the poll.
Last reply by foosman, -
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On the laundry list of odds and ends I need to address, one is the reverse lights wiring . Upon my purchase recently there where no wires attached to the switch . I Looked around the forums a bit and seen mentioning the wiring diagram to determine the run, I have the diagram but was hoping anyone may have some pointers on if it comes through the firewall or it’s in the dash? Ironically I see 2 wires pertruding out the firewall could it be that easy ? The year is a 71 month 3 , i certainly will be scouring the forums for knowledge. And apreciate and and all help !
Last reply by CanTechZ, -
Gauge issues 1 2
by Dolfinz- 4 followers
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Now that I have the engine running it's time to address the dashboard electrical issues. The only gauges that work are the speedo and ammeter. I figured it might be a wiring issue related to them all so I pulled the dash. I couldn't find any damaged wiring but notice the terminal block pic attached. Possible connection issues at this point? Is there any kind of cleaner or solvent that can be used to clean up the connectors? Beyond that utilizing the wiring diagram I tried to figure out the concept behind the workings of the gauges. Can't figure it out. Black wires to all gauges are clearly ground. Red/blu wires to all gauges appear to be +12 but they are just for …
Last reply by dutchzcarguy, -
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Hi Friends, Sometimes when i turn the ignition On-Start etc. the starter do not engage. It is like there is no current flowing to it. I then back off the key and turn it ON again and after 2 try or sometimes 3rd try the starter gets engaged. Mine is a A/T so there is a seat belt relay which is also involved and I have the seat belt hooked. Have anyone seen this? where can the issue be? I feel one of the relays is not getting energized? what you guys think? Starter is rebuilt and I am hoping it is not a starter/solenoid issue.
Last reply by MH77280Z, -
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Hello, I bought a Pertonix ignitor 1 and Flamethrower 1 and I am having trouble getting my car to start and have the Tachometer work. I have heard that I don't need my balast resistor and I can splice several of the wires together but I don't remember which ones. In addition I believe I have more wires than I need? Right now I have 1 black, 1 black with white stripe and 1 green with white strike wire not connected to anything? I am sure that is wrong? I have followed the in box pertonix directions. My set up is black wire and red (to the Ignitor) on the Positive side of the coil, on the negative I just have the black to the Ignitor. Thank you very much fo…
Last reply by HappyZ, -
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Hello all, My instrument panel on my 1973 240z will not light up. It initially went out when my combo switch burnt out, literally smoke coming from the steering wheel. I have since had the switch refurbished but the dash has not come back on. The fuses in the fuse box in the center console look intact. I am not sure if there another fuse I need to look for? Any help is great. Thank you for your time!
Last reply by dutchzcarguy, -
- 2 followers
- 6 replies
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Every time I put a 240z back together I run into the same problem, push the horn button and you get a click with a bit sound from the horn then nothing. I can't remember what the fix is, anyone recognize the symptom? Thanks
Last reply by grannyknot, -
- 2 followers
- 25 replies
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I haven't been happy with the charging system in the 260Z for a while. At startup, the alternator output was fine, but after a while of driving, the voltage would drop down to only 12.8VDC many times. It was time to explore options. Since I converted the carburetors into throttle bodies for the Patton Machine GM TBI fuel injection, I wasn't using the neutral (yellow) wire from the alternator for the fuel pump relay #1. That meant I didn't have the limitation a stock 260Z owner would have. (Of course, I could have worked around that one if needed.) Because I like experimenting on my projects, I decided to look into the Nissan Frontier 70A alternator. Since I didn't fe…
Last reply by SteveJ, -
- 4 followers
- 53 replies
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In my 77 280Z I've read 13 volts on the meter for over 40 years. Just lately it has started spiking upon starting the vehicle. It will shoot up to the pin and the car runs but the audio system sounds pretty funky. So, something is going on. I can restart the car and most often clear the problem. Sometimes not.
Last reply by SteveJ,
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