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  1. F/S -Brand New -EZ-wiring 21 circuit universal wiring harness. $160 shipped in a flat rate box PM for paypal address https://www.ezwiring.com/shop?Collection=Wiring+Kits+%26+Switches
  2. Alrighty, Ive got a stock 1978 280z and I'm currently installing an MSD 6A and Blaster 2 coil into the car. After reading any and all forum posts on the topic I came to the conclusion that I would need an MSD Tach Adapter 8920 in order for the MSD box to Communicate to the EFI by upping it to 12v. All my wires are in place and I'm getting a good strong spark. I put a voltmeter on the purple wire coming out of the MSD tach adapter and I'm getting 12v. Only problem is that I'm getting no fuel. It must not be communicating with the EFI somehow. Here's my Setup. MSD 6A: Heavy Red goes to b
  3. Hello i have a sbc in my z. My wires fried (literally) so I am in the process of re wiring using the painless 21 circuit. I pulled out all of the original burned harnesses and starting from scratch. Im sure I got some wires crossed but my main concern is relays and the voltage regulator. 1) Do I need to add any relays or is it just an extra precaution. If I do where would I place them in the wiring. 2) do I need to wire up the voltage regulator ( by the driver side kick mat). If so, what wires do I use 3) for the rear brakes where does the third brake light w
  4. 🤒 Got her about 3 weeks ago. Has quite a bit done already. BC racing coil overs, polyurethane bushings. New brake cylinders, fuel cell, fuel rail, Ford 508 fuel injectors, full custom straight pipe exhaust &, of course, the Megasquirt system that runs to a crank thingy and O2 sensors. I just switched out the oil pan gasket since it was completely covered in oil underneath. I sprayed it with some heat resistant paint. Bleed the brakes with limited success (still don’t feel good). I installed the noico sound and heat insulation near the shift boot opening and still need to
  5. 🤒 Got her about 3 weeks ago. Has quite a bit done already. BC racing coil overs, polyurethane bushings. New brake cylinders, fuel cell, fuel rail, Ford 508 fuel injectors, full custom straight pipe exhaust &, of course, the Megasquirt system that runs to a crank thingy and O2 sensors. I just switched out the oil pan gasket since it was completely covered in oil underneath. I sprayed it with some heat resistant paint. Bleed the brakes with limited success (still don’t feel good). I installed the noico sound and heat insulation near the shift boot opening and still need to
  6. 🤒 Got her about 3 weeks ago. Has quite a bit done already. BC racing coil overs, polyurethane bushings. New brake cylinders, fuel cell, fuel rail, Ford 508 fuel injectors, full custom straight pipe exhaust &, of course, the Megasquirt system that runs to a crank thingy and O2 sensors. I just switched out the oil pan gasket since it was completely covered in oil underneath. I sprayed it with some heat resistant paint. Bleed the brakes with limited success (still don’t feel good). I installed the noico sound and heat insulation near the shift boot opening and still need to
  7. I have been reading a ton on this site and am ready to post wiring directions on the combo switch for those of you using an EZ Wiring harness. There may be some differences between what model combo switch you have; the one I am working with is off of a 260z and has a 9 pin wiper connector. Some of you may disagree with my wire labeling; well you are wrong; I got it from a guy who restores the combo switches and has done so for over 2 decades. I am going to trust his info and my success with wiring. You will notice a few changes in my chart than in previous posts by other members. Again, I
  8. I've been putting in alot of time in the garage trying to tuck and shave my bay along with installing megasquirt. My only question about the whole thing is, how am I to ground the million black wires? I've read NOT to ground them all in the same spot. I've also read NOT to solder them into a bigger wire and put it in a single location. But I HAVE heard that I should ground everything to my block. I'm currently wiring the injectors. Where do I ground this bundle of 6 black wires? Tha k you very much for your response. Sorry if this is in the wrong place or already posted. Still trying to
  9. i am swapping a vg into a 1991 nissan stanza, the harness im using is from a 1994 maxima, this image is from the 94 maxima FSM i need to know what these two plugs actually do and where the wires in them go. the plugs between the stanza body harness and the maxima engine harness are different (stanza body harness is a 4 pin, maxima engine harness is a 6 with 2 pins jumped for some reason) i have the stanza engine harness which i plan to steal the 4 pin plug from and mate that to the maxima engine harness to connect the two together. i have managed to find some wiring diagrams (both ap
  10. I have recently rebuilt the VG30E that is in my 1985 300zx, NA and automatic. It was a stock rebuild with a rebuild kit except for the cams, which were replaced by a Wolf Technologies AZ314-000S1. Because of the new cams I also opted for a 1987 ECCS with JECS#: A18-679 M83 with nistune installed. The engine has been assembled for a couple weeks now and it's still having problems. It will fire and it seems like the timing isn't set right. We have gotten it to run long enough to hopefully break in the cams, but it has rpm fluctuations under throttle and wont idle. The current th
  11. Hello everyone, I'm having some issues with getting my 1971 240z started. I've changed fluids, cleaned spark plugs, and got a new battery. I've had the starter and the alternator checked and they are both good. I have power going to the voltage regulator when the key is on but all I get is a clicking sound from a relay that is inside the cab on the passenger side. The fuse box has power but has been modified from stock by the previous owner. I have a video at :54 is the relay clicking. Any help is appreciated. I can also take more vids of dash and engine wiring.
  12. I have a 1972 240z, and the guy I bought it from got a viper security system and a beefy sound system wired in (very poorly might I add). I need to rewire a lot of the engine bay and the wiring diagrams available are not helping, a lot of wires are spliced and replaced that don't match up or are just taped off and lead nowhere. If anybody has a diagram of all the 10 pin connectors that are located underneath the passenger side of the dashboard it would help a lot, or if anybody has any self made diagrams that are at all related to engine bay wiring please post them, anything might help me out.
  13. I've been a member here for 13 years and have probably read every post (twice). Now I have a bunch of questions so I tried to wrap them all up into one big question with the use of a wiring diagram. Would someone with good wiring knowledge please look over my drawing and advise me if it’s OK as is or what needs to be changed. Thanks guys! 1977 Datsun 280Z Restomod 2005 L33 Chevy 5.3L V8 Motor Carb Manifold with MSD Ignition
  14. Would someone be so kind as to look for me and tell me which side the wiring comes out of for the steering wheel, left side of it or right side of it, that would be super helpful. I'm having trouble getting the reach I need and I think I installed incorrectly.
  15. Just got my LS6 up and running using MS3Pro and the DIYAutoTune drop on LSx 24 harness. From the harness, there is 1 wire that goes to the alternator to activate a low charging light. That's the only wire on the plug. The alternator I got reman from RockAuto (98-02 Camaro) was tested fine at AutoZone. The alternator will not charge. I have the hot lug run back to a fuse block where all the large gauge wires centralize from the battery. I tried running a wire from the 'sense' pin on the alternator back to the fuse block so the system has 'reference' voltage, but that didn't work either.
  16. Hi all I would like a quick run down of the wiring schematic or any kind of help to get this 1jz started outside of the car. Came with all wiring stock from factory as well as ECU. ECU has four plugs and is a jzx100 motor. Etcs What wires do I need to hook up to get this baby to run
  17. Hello i am new to this forum but i hope to get some opinions. I have fully restored my 260z and it is mostly stock, i recently bought and rebuilt a l28et. now that the engine is done i am moving to the wiring and i come to realise that i do not have the proper wiring harness. The guy i got the engine from gave me everything he had. by the looks of it i have a 82 l28 ecu and harness, a later 70's wiring harness slightly cut up, and the correct 82 l28et ecu. Should i bother with the stock ECCS and make a harness or should i buy a megasquirt. The megasquirt is tempting but im one to save a dollar
  18. Hi everyone I'm currently doing a 81 l28et (all stock) swap into my 74 260z. My harness was missing the 6 pin ignition harness. I wired the correct yellow/white stripe wire (3) to my ignitor. Other prong on ignitor has its own switched 12v. The yellow wire (2) on the harness side has switched 12v. And finally the supposedly black ground wire (3) on my harness is cut and i can not for the life of me find the wire . If someone can tell me where this wire goes or what prong on the computer plug it connects to. Thank you 74 260z 73 240z
  19. Interior box has all the fuel injection relays & fuses in their own section. Then normal car body fuses. Then a panel with a 50 amp accessory relay, a ignition relay, horn relay & headlight relay. The ignition switch now only carries the load of the two relays. There is a forth section with 6 micro relays that is for expansion in the future.
  20. Hello all. So I recently picked up a new 1976 280Z Non CA. It has a few mods to it. Stage III schneider cam, headers, monza exhaust. Something failed on the EFI and the previous owner cracked open the AFM and tweaked a bit. This is causing the engine to run extremely rich. The coolant temp sensor is dead also. I've decided after seeing many split wires and splicing that it would be best to start new with Megasquirt. I plan on purchasing the MS2 3.57 assembled unit and wiring harness. I know this question strays from the normal. I know the option of going to a 82-83 dizzy. As of right no
  21. Ok, So I need some help with wiring. I am swaping a 1981 l28et into a 1976 280z I recently just found out that the wiring harness and ECU that I have is from an 1982; after checking the serial # on the computer and noticing that the wiring harness did not have a hook up for the dropping resistors. I have been having difficulty understanding the wiring diagrams for both the 1981/2 harness and the 1976 harness. I have been using the Bumble Z ( wiring torutrial as a reference but I am still confused. Most of what I have figured out is quite simple: the injectors, CAS, other sensors, but thats
  22. Bought a 71 240. It's gone from the shins down. Rust bucket to the max. If I live long enough, i'll be riding in her. I had a 71 back in 74. I have done collision work for 35 years or so and I have a decent interim knowledge of component relations. This is the link to the video of the first start. https://youtu.be/Oqve26DR7i0 Here is the data. Tail lights work. Left front park light works. Left front marker works. Both rear markers work. No headlights. Wipers work. Glove box light works. Courtesy light on dash works. I have not checked bulbs. Pow
  23. Hello everyone, I am wondering how would the wiring work for the harness off an 83 280zx turbo into a 78 280z. Will the wiring for digital gauges on the 83 snap right on to the wiring on the 78's analog dash?
  24. Well, I figured it would happen eventually. I'm trying to figure out the wiring before I get the engine in the car so the swap goes as quickly as possible. I've gone over the sticky as well as the more extensive and hidden version of the same thing. Harness is from an 82/83 280ZXT and going into a '76 280Z The diagrams and pictures I've seen have two plugs near the rubber firewall grommet, one for ignition (8 wire plug) and one for the fuel pump/fuel pump relay (6 wire plug). However, my harness has two 8 wire plugs, and the wires and colors do not match those of the diagrams
  25. So I can't seem to figure out this electrical problem. My turn signal switch worked for a while and then stopped working. Park lights still work when the headlights are turned on and hazard lights work, The brake lights worked for a while but recently stopped working as well (not sure if caused by turn signal problem) So I tried cleaning the connections by following this write up: http://fiddlingwithzcars.wordpress.com/2012/12/04/turn-signal-repair/ and after they still don't work. So i borrowed a turn signal from another 72' 240z and still nothing so it has to be before the switch.
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