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Old 12-20-2012, 08:07 PM   #1
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Default NB engine harness blue connector pin out info?

Hey, I'm trying to figure out the pin out for the blue square connector in the '99 NB engine harness, I think it's called the X16 ( X-16 ? ). It's located near or on the heater assembly and has that green security latch. I looked in the factory FSM posted here and the Mitchell wiring diagrams that were on another site, I even looked on Motor Alldata. I found pin out diagrams for wire connectors that engage components like the ecu, but no pin outs for harness to harness (mid harness?) connectors.

I'm installing stand alone megasquirt and a new engine in My '99 so I need the info to hook up the stock guages and what not. I'm selling my 99 engine and trans to a kid with a triumph project and it would be nice to give him the info he needs to utilize the wiring I'm selling him.

Can anyone help me find this info? Thanks.
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Old 12-20-2012, 10:43 PM   #2
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This one?



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Old 12-20-2012, 10:52 PM   #3
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Old 12-20-2012, 11:04 PM   #4
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That's the one, Thanks Joe. I didn't see them in the FSM from this thread https://www.miataturbo.net/useful-sa...34/#post889636

Is there a seperate manual with wiring diagrams or was I not looking hard enough?

Everyone has been super helpful around here. Hopefully at some point I can answer questions instead of asking them.
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Old 12-20-2012, 11:20 PM   #5
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For the NBs, the wiring diagram is separate from the FSM.
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Old 12-21-2012, 01:14 AM   #6
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Joe, do you have a link for the wiring schematics? It will probably be something I will find useful in the future.

Thanks
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Old 12-21-2012, 01:28 AM   #7
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I saw this thread and the first thing I thought was, "I bet Joe Perez will be the hero here."
Sure enough.
You're the man, Joe Perez!
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Old 12-21-2012, 02:22 AM   #8
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2000 MY wiring diagrams located at the bottom of the page here: Miata Information


I don't know how I didn't find them! I searched for almost 40 minutes last night.
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Old 12-22-2012, 01:53 PM   #9
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Sorry I didn't get you that link- I'd been working off local copies. But yeah, that's the version of the diagram I have as well, and from the same source.

I'll never understand why Haynes / Mitchell / Chiltons / etc even bother publishing wiring diagrams. They're complete rubbish, and I have never seen one that didn't contain at least a few errors.
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