1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Dash Harness question

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Old May 8, 2017 | 03:06 PM
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From: Johnson City TN
TN Dash Harness question

Sorry in advance if this has been asked, I could not find it.
Go easy on me I did a goof. OK here goes, I swapped the dash out of my '83 GSL for a dash out of a '85 GS and like an idiot i forgot to grab the harness. The question I have is the Dash Harness from a 85 gs, gsl or gsl-se the same? I assume there are some differences like the hvac controls on the gsl-se but not sure. The reason I ask I think is obvious I want to make sure I can get the right one that will work.
Any info is appreciated and thnx in advance.
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Old May 8, 2017 | 04:04 PM
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The 1984/1985 GSL and GSL-SE hvac controls are push button and the others are sliders. I don't think there is a difference in the wiring though. You'll also need the computer which means you'll need the 12A computer. This is mainly for the cluster.
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Old May 9, 2017 | 03:03 PM
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From: Johnson City TN
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Originally Posted by KansasCityREPU
The 1984/1985 GSL and GSL-SE hvac controls are push button and the others are sliders. I don't think there is a difference in the wiring though. You'll also need the computer which means you'll need the 12A computer. This is mainly for the cluster.
So if I pull the trigger on this one do you think it would be fine? 1984 1985 Mazda RX7 GSL 12A / Dash Wiring Harness / OEM | eBay
It says GSL in the title but farther down it says GSL-SE so I'm really not sure. I checked the compatibility on there and it says no so I'm like

About the computer thing I have deleted the emissions stuff and will be tidying up the engine wires so I'm a bit confused about needing the computer. I know I didn't mention anything about what's been done or will be done but needless to say it's not stock.
Thnx for the help
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Old May 9, 2017 | 04:17 PM
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OK so i did some more digging and saw this (I'm slow), so i guess all i would need is the instrument cluster harness and the a/c harness or is the front harness different too (man i wish i still had the other chassis or another chassis) I just don't know
Attached Thumbnails Dash Harness question-dashwireingharness.png  
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Old May 9, 2017 | 06:47 PM
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The parts manual can validate if they are different/same. Page 2-G10.

I think $130 is too much for a dash harness.

http://foxed.ca/rx7manual/manuals/pa...202%20BODY.pdf

Last edited by KansasCityREPU; May 9, 2017 at 06:49 PM.
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Old May 9, 2017 | 08:05 PM
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From: Johnson City TN
Originally Posted by KansasCityREPU
The parts manual can validate if they are different/same. Page 2-G10.

I think $130 is too much for a dash harness.

http://foxed.ca/rx7manual/manuals/pa...202%20BODY.pdf
Hey thnx for that. Looks like I"m gonna be pulling the dash again and see how everything is connected together then i think i'll have a better idea of which pieces i need and where on earth i'm gonna find em.

OK I think I may have it figured out 1. I need the front harness with the instrument cluster gauge plugs 2. the instrument harness 3. hvac harness. Pretty much all three in the above pic. Sound about right? I think I may have some leads as to the harnesses, gonna call Covey's in the morning.

And thnx again Kansas you've been a big push in the right direction

Last edited by lphillips; May 9, 2017 at 10:03 PM. Reason: more to add
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