Electrical
Anything about the electrical system on a Zcar.
3,450 topics in this forum
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I'm putting in a honda blower motor in my Z. There's the blue wire, but as you can see there's a red wire that's attached to it. That wire goes to the pigtail in pic. It has the inline fuse also. There's the other blue wire beside it that has an inline fuse also. Does the blower motor wire connect to the blue/red wire or does it connect to the other blue wire? Any help? And why don't i see anything about heater motor on wiring diagrams? Thank you very much, TimsZ The other blue wire isn't in the pic.
Last reply by timsz, -
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Only thing that has changed is that I got rid of my dizzy and coil since going with Megasquirt. Voltmeter on the sensor wires gives an erratic volt reading. I tried looking at the schematic and it's not making sense. Maybe gauge when tits up, but the timing of this issue makes me think it's something I did. Any clues?
Last reply by Captain Obvious, -
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I am sure that this post is not a revelation but just thought I would post something here. I have a post, a few posts, in the EFI section and have been chasing a fuel delivery issue. After dropping the tank and cleaning up, fuel filter replacement, installing a fuel pressure gauge, adjusting several other things, it appears that the problem may have just been bad connection at my fusible links. If anyone out there is having issues and think it may be fuel related I am just recommending checking battery voltage and specifically the fusible links. I cleaned mine up some and the car is running much better now. A little early to completely know if the problem is 100% resol…
Last reply by SilverStreak28, -
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I've had this 71 datsun 240z for a few weeks. one day it just stopped running(it was a barn find btw). I checked the electronics. they looked pretty good. I replaced the plug wires, the sparkplugs, the condenser, the distributor, the points adn the coil( i routed a wire around the ballast resistor because the new coil produces sufficient ohms). after all this still no spark. I've started testing continuity and so far its turned out good but i still dont know where to put the ends of the ammeter thing when testing the tach to where the blue/white wire leaves the cabin. The compression is good in the engine and sufficient fuel. so i'm really at a loss as to what to do. any…
Last reply by EuroDat, -
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Are you in need of a replacement connector for your tail lights but don't want to use or gamble on a used connector? Would you like to upgrade to a different bulb type (3156/3157) that does not require a spring as well as twist in turn action? Well, I found just the one for you. Introducing the Dorman 85881 connector for late model GMs. It utilizes a 3157 bulb (two filaments) but can be used for every light in the tail light housing. For the reverse light you just don't wire up the third wire. Now there is just a tiny amount of modification that needs to be done to both the connector and the housing, but it is very, VERY minor. First, the housing. You need to trim…
Last reply by ktm, -
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I ordered a replacement 9 SMD LED (BA9S) for my engine bay light thinking it would give more light than the bulb Im using now. Only problem is the LED won't fit under the standard lens. Its too short. To get it to fit I made a 10mm longer lens out of two other ones I made and from that I made a mold for a new longer lens. Now the LED fits and the end result looks like the original all be it a little longer. Its a lot brighter than my old bulb and uses a lot less current. Im happy. Chas
Last reply by TomoHawk, -
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Hi! I have solved all the electrical issues on my Z now, except one. I can't get the turn signal lights to work. When I turn on the hazard switch, all the lights flash as they should, included the indicators in the tachometer. When I turn on the driving light switch, the turn signal indicators come on and is lit constantly. If I then try the turn signal switch, the indicator for the side I switch it in turns off, but still no flash... If I disconnect the front turn signal lights, the dash indicators turns off, but I still don't get any flash in either direction. Only hazard flash works. What can cause this problem? Sorry if this was badly explained. I am norwegian, s…
Last reply by SteveJ, -
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As part of my switch to a Megajolt ignition i build a small electronic circuit to convert the "four wire" current driven Datsun tacho in my '72 240Z into an electronic tacho, which can directly be connected to the tacho output of the Megajolt, MSD, Bosch, Crane or other electronic ignition. Quite surprisingly, the 38 year old tacho was very precise after a calibration, with the highest display error below 3%. You'll find a complete description including the wiring diagram, pcb files and images here: http://www.dinoplex.org/tachoconversion/ Best, Adrian
Last reply by madkaw, -
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I am looking for some guidance on whether or not this distributor is going to work with the setup that the P.O. had in place. I have read Walter Moores' post and can not find my dist. number on any list. I have a D612-53, with a 12 deg. T bar. I see D612-52 and D612-54, but no -53. My distributor is from a 1971 S30 and has been converted to electronic ign. ( Crain XR3000 ) Engine config. is an F54 block, N42 head with a .450/.450 238/238 @ 0.050 cam, 6-2-1 header 1972 carbs with Z Therapy SM needles and stock air box, with cold air intake. My question is, IF this distributor falls in the same category as the D612-52 and the D612-54 with the wild centrifugal and the vacuu…
Last reply by MY1PATH, -
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I adapted a Metra PW-22 today to work on my 240Z with the antenna switch. Turns out, all I had to do was to put a diode between the red and blue wires, and then hook them up to the switch's outputs. For lowering the antenna, the diode allows you to power the mast motor without energizing the magnet (and switching the relay). For raising the antenna, the diode allows you to power the mast motor and energize the magnet (thus switching the relay). The PW-22 can be had for $65 at Autozone, about $100 cheaper than the MSA replacement.
Last reply by Mikes Z car, -
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Hey guys, here's the story..need some help.. I have a 71 240z. Stock (mostly). Prior owner installed the parking light upgrade with 15 amp fuse link coming from battery positive terminal. I just upgraded the alternator to a 60 amp. Disconnected the old voltage regulator and capped with the diode connector from motorsports. Everything was and is great! Car runs better. Charging well. Starts easy and no problems when I got everything hooked up. About 30 minutes into my drive back home after connecting everything at my friends shop. The dash lights went out (and the side and rear parking lights). Headlights, high beams, turn signals, dome, hazzard, lighter, radio, power ante…
Last reply by ronlaw28, -
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I have seen references to replacing the stock tach with an Autometer 3990 tach, but cannot find any description of how it is fitted to the stock housing and wiring. Has anyone done this? I would like to install one in my 1973 240z. Thanks, Victor.
Last reply by gearman50,
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