NB OBD II port not working?
#1
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So I bought a stock 99 10AE. It runs/drives fine. I have a 20 dollar OBDII to Wifi adpater and it connects to my phone and works great. No issues. I can read codes, see realtime info, etc.
I go to get the car inspected, the shop says the OBD II port isn't' working. We tried wiggling the connector, etc, but he says it doesn't work.
I go to another one down the road, same thing, they said it doesn't work on their machine.
But the wifi dongle does work fine.
Any ideas? I've got the 99 wiring diagrams but so far I haven't found that port on the diagram. I have a scope, volt meter, etc, so hopefully can find the issue quickly. I'm curious how it could work sometimes. That seems odd.
I go to get the car inspected, the shop says the OBD II port isn't' working. We tried wiggling the connector, etc, but he says it doesn't work.
I go to another one down the road, same thing, they said it doesn't work on their machine.
But the wifi dongle does work fine.
Any ideas? I've got the 99 wiring diagrams but so far I haven't found that port on the diagram. I have a scope, volt meter, etc, so hopefully can find the issue quickly. I'm curious how it could work sometimes. That seems odd.
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Well turns out my neighbor had a wired obd II port reader. We hooked it up and found that you can wiggle the harness and it flickers on/off. So something is going on with that wire or plug. No idea why this would be a problem, but at least it's reproducible now. I'll update when I get it fixed and know exactly what what happened.
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My car had this problem. We used to be able to hold the connector for smog and it would work until finally one time, it wouldn't. I was able to pull pins out and sort of reform them. Only had a problem with a couple of the connections. Now it works like a charm. Might have to do it again in 10 years or so.
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My car had this problem. We used to be able to hold the connector for smog and it would work until finally one time, it wouldn't. I was able to pull pins out and sort of reform them. Only had a problem with a couple of the connections. Now it works like a charm. Might have to do it again in 10 years or so.
Also I was immediately blessed with 6 blinks from the airbag light.
![facepalm](https://www.miataturbo.net/images/smilies/facepalm.gif)
But anyways ended up unplug/re-plugthe airbag connector a couple times and the light seems to be off now.
Plan to swap the clock spring and airbag and wheel soon anyway, so hopefully it stays working to get it inspected.
FWIW if anyone ever needs to do this, google how to depin the obd 2 port. I thought I could tell by looking at it, but I was wrong.
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I’ve used these at work when wiring ABS or OE ecus: Elite.Citi OBD II OBD2 Serial Port ALDL Data Link DLC Repair Kit ODB2 w/Cover Cap for GM https://a.co/d/gtY8Tka
Probably better than a 25 year old connector.
edit: we’ll that link sucks, try this one: https://a.co/d/cH8wKpB
Probably better than a 25 year old connector.
edit: we’ll that link sucks, try this one: https://a.co/d/cH8wKpB
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I’ve used these at work when wiring ABS or OE ecus: Elite.Citi OBD II OBD2 Serial Port ALDL Data Link DLC Repair Kit ODB2 w/Cover Cap for GM https://a.co/d/gtY8Tka
Probably better than a 25 year old connector.
edit: we’ll that link sucks, try this one: https://a.co/d/cH8wKpB
Probably better than a 25 year old connector.
edit: we’ll that link sucks, try this one: https://a.co/d/cH8wKpB
Frustrating, but the plug you linked should solve this. Should be here monday!
#9
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I’ve used these at work when wiring ABS or OE ecus: Elite.Citi OBD II OBD2 Serial Port ALDL Data Link DLC Repair Kit ODB2 w/Cover Cap for GM https://a.co/d/gtY8Tka
Probably better than a 25 year old connector.
edit: we’ll that link sucks, try this one: https://a.co/d/cH8wKpB
Probably better than a 25 year old connector.
edit: we’ll that link sucks, try this one: https://a.co/d/cH8wKpB
Thanks Curly for the help!
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