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Diagnostic Port Pinouts

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Old 01-09-2016, 03:47 PM
  #31  
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Default OBD code

Can someone tell me where the FEN terminal is located in a Miata mx5 1999, so I can do all the connections and read the proper code?
Thank you so much
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Old 01-10-2016, 06:48 AM
  #32  
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Try here.....






https://www.miataforumz.com/how-40/m...s-fsm-etc-500/


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Old 01-10-2016, 10:43 AM
  #33  
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My Miata doesn't have a FEN because it's a 99, then, where does the LED red wire connect to?
Thank you
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Old 01-10-2016, 11:52 AM
  #34  
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Your 1999 car should be OBD 2. I don't believe the codes are readable using an LED. that method only works on OBD 1 cars...earlier.


You need an OBD 2 code reader that will plug into the OBD 2 connector, located under the dash, on the left side of the steering wheel.


If you don't have the code reader, consider taking the car to Autozone or a similar place that will do a code reading for free. A friendly mechanic may do the same also.
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Old 01-10-2016, 12:14 PM
  #35  
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Thank you very much for your time!
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Old 01-10-2016, 01:37 PM
  #36  
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This one is for a Miata 99:

Performance Tool CAN OBD II Scan Tools W2977 - Free Shipping on Orders Over $99 at Summit Racing
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Old 04-21-2019, 11:30 AM
  #37  
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Default I just did the same thing right now and car will not start for my 1990 Miata ..

Originally Posted by MF-Brain
that's what happens when the box isn't labeled and you're "postive this pin is TEN"

i was close.

What do I need to replace please and thanks
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Old 04-21-2019, 11:32 AM
  #38  
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Default What do I need to replace ?? I just did the same thing in my 1990 Miata

Originally Posted by MF-Brain
Yes, that will happen.


Hey guys I’m new here and I just did the same thing help!!!! LOL
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