300ZX (Z31) Forums Dedicated to 84-89 ZCars otherwize known as the Z31's

interchangeable ECU's

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Old Dec 10, 2010 | 08:26 PM
  #1  
86_VG30ET_Z31's Avatar
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interchangeable ECU's

I have a "1986 23710-19P03/A18-654M34 ECU" on my 86 300zx turbo but its not good anymore, an a junkyard sell me one from a 84 300zx turbo "1984 23710-02P03/A18-635374 ECU" for 65 bucks they give me 90 day warranty they say it works. but my question is would this computer work on my car? An if i does work with my car is the price right or to expensive or to cheap?
Old Dec 11, 2010 | 12:41 AM
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You're SOL. The only ECU you can use is from another 86 turbo. If you have a 5spd, you won't need to worry if it's an auto or manual ECU. If you have an auto, it will have to be from another automatic.
Old Dec 11, 2010 | 02:00 AM
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Originally Posted by AZ-ZBum
You're SOL. The only ECU you can use is from another 86 turbo. If you have a 5spd, you won't need to worry if it's an auto or manual ECU. If you have an auto, it will have to be from another automatic.
I always thought the 84-86T ECU's where the same, as I had an 86 ECU in my 85T parts car and it ran great.
Old Dec 11, 2010 | 02:04 AM
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http://www.redz31.net/pages/fuel.html

O2 sensor for the 86 is completely different.
Old Dec 11, 2010 | 11:00 AM
  #5  
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Originally Posted by AZ-ZBum
http://www.redz31.net/pages/fuel.html

O2 sensor for the 86 is completely different.
So all he would have to do then is swap the o2 sensor out for the zirconium one, he's not really SOL if all he has to do is swap the o2 sensor to switch to the 84T ECU.
Old Dec 11, 2010 | 11:53 AM
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I have a 86 Turbo ECU auto I will sell for $65 shipped
Old Dec 11, 2010 | 05:20 PM
  #7  
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So lets say i buy the ECU from REDDZX but mine is a manual an his ECU is for an automatic would all the harness plugs be the same on the computer to the car or would i have to do some wire cutting.
Old Dec 12, 2010 | 06:40 AM
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They are all the same
Old Dec 12, 2010 | 10:07 PM
  #9  
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Smile

So how can we arrange for the ECU purchase i am really interested on the ecu as soon as possible
Old Dec 13, 2010 | 06:22 AM
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send me an email. I use pay pal.

reddzx@comcast.net
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