Question about 1986 Nissan 300ZX

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Replace digital dash

Need to put in digital dash in 1986 300zx

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Jsierra90: I'll bet you are wanting to replace it because it doesn't light up and operate any more? Correct? 9 out of 10 times that is the primary reason people think the dash needs to be replaced.
Good news. The power supply for the digital dash is a lot easier and cheaper to replace than the digital dash.

Here are the symptoms if it was the power supply: The dash would be intermittent in operation where it would start off sometimes just flickering or going on and off. You might experience a loss of the tachometer or the entire dash. The problem would continually get worse until it would become more off than on. IF SO, your power supply to the dash is the problem.
The power supply is located under the dash just to the right of the steering column. When you remove the lower panel which is 2 screws # 6 phillips screw driver. A screw at the bottom right hand corner and same on the left hand corner. The top part of the panel just hooks into the dash, so by lowering it 30 degrees it should drop loose.
Now you will see a box about 4' X 4 ' if I recall correctly dull Silver in color with two harness connectors plugging into it.
(NOTE, IT WILL BE THE ONLY BOX ON THAT SIDE IN THAT LOCATION WHICH FITS THAT DESCRIPTION.) The box is secured by 3 or 4 bolts requiring a 10mm wrench and/or socket to break them loose. Most of the Nissan hardware that size have a place for a phillips bit screw driver as well. They have been doing that since the early seventies and it'f I'm not mistaken, I think I have seen some hardware like that on the old SRL-and SPL-311's
The old Datsun Roadster's. OOOPS! (1960's) I think I might have given a hint as to how old I am. BUT, I don't FART DUST YET!
ANYWAY, I hope I had given you some in-site to your problem. If it is not the solution, you can reach me through the FIXYA channels and I'll walk you through Diagnosing the other aspect of the dash as well as give you blow by blow instructions on how to pull the digital instrument cluster.
Again, have been business for 29 years and when I first opened, I opened up as the "Datsun Specialist". My shop was always packed after the first we made it through the first three months.Nissan Forced us to change our name telling us that we were infringing on their registered trade name. Failure to comply will find us in court!
They suggested Grand Prairie Auto Repair" . I couldn't have thought of a more original name! So I named my dog Rover and the other one Spot! I wrote back to them: What about the fact what I am one of the earliest Nissan Master tech's in the Nation? What about the fact that I use Only Genuine Nissan products on the cars that come through my shop? Your dealers don't even do that!
I promote the product and act as a liaison between disgruntled customers who felt they got screwed by Nissan dealers..
Their reply: It was a nice way of saying "we could give a damn, why don't you stick it where the sun don't shine?!"
So, My wife of 37 years and I decided to bring Mercedes, Toyota Mazda and Honda into our lineup. I was the only Nissan master tech back then, I had stolen one of the tech from the dealership I had worked at. I hired a Mazda Master tech, a woman technician who had all her ASE certifications and had worked ina general repair shop as well as a transmission shop for two years.
I hired one other man. A Vietnamese who hardly spoke English but I just had this feeling about him. The woman tech turned out to be my best tech, she's in her 40's and she flat kicks ***! I would pit her against techs with 10-15 years more experience over her.
I am one of the few exceptions to the rule, but she gives me a run for my money and I'm in I'm 60's! The Vietnamese: has a mind like a steel trap! You only have to show him once and his learning curve which is exponential. He ended up stiffing me though. I had given him a crash course in auto repair. ( love teaching and would be called in to sub for companies that train in collision repair and other ones that has classes in EFI and other subjects.) My first few years, I was working 7 days a week and 12-18 hour days. The Vietnamese tech would hang around even after he was off the clock to watch me work and just pump me with questions. He also picked up English within 3 months to where he could understand me and I him! He went from earning$11,500 the first year on the clock to putting him on flat rate like all my other techs. He made $26,500 the second year and $31,254 before he felt he was educated enough to open his own business in "Little Vietnam".
As for your options on sources? Used is the cheapest way out.
I found one on EBAY for $80.00
All Z's in Ft. Worth Tx 817-438-4300 call and see if he has any.
Let me know what area you are in in the country and I might be able to round you up a good one. Other than that, a new one is your last resort. There are some salvage yards that sell extended and lifetme warranties
Good luck.

Posted on May 24, 2009

  • Jonathanc60 Sep 23, 2011

    You really seem to know your stuff. Do you think you can help me with my 86 300zx Turbo. I think it might be a problem with a sensor that I believe is called EG something. The car is not close to me right now but if your looking at engine from the front it would be on the right side of the manifold and as two wires connected it. Can you email be with more solutions please.


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OK just re solder all the prongs in the power box like that guy talks about for 100.... paragraphs. no offense.

Posted on Jul 03, 2009


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