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Old 07-04-2018, 04:36 AM   #1
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Default KA24e o2 sensor question

The previous owner of my truck deleted the O2 sensors and I'd like to reinstall them. My problem is locating the plugs on the harness for the sensors. If anyone could help me out I would appreciate it. I have a 1990 d21 4x4 4cyl.
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Old 07-04-2018, 02:11 PM   #2
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should only be one sensor
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Old 07-04-2018, 03:02 PM   #3
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I sold my 91 but on my 96 I believe the two H02S harness connectors are on the bracket connected to the driver's side exhaust manifold heat shield. Kind of below dipstick finger pull and a few inches up from steering shaft. Might be same for 90?
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Old 07-08-2018, 06:37 AM   #4
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There isnt any heat shield on the manifold only near the collector and I dont see any bracket there. The engine has been out of this truck a few times so theres a few plugs unplugged on the drivers side. Hard to find a picture or video of the actual plug.
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Old 07-08-2018, 07:15 PM   #5
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It's a single wire plug, and it's kinda hidden, I'll take a pic in a few mins to show you
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Old 07-09-2018, 10:14 PM   #6
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Here the pic
Attached Images
File Type: jpg 20180708_121704.jpg (96.5 KB, 7 views)
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Old 07-09-2018, 10:15 PM   #7
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It's coming from the front of the truck and routes back to the o2 sensor
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Old 07-21-2018, 04:27 PM   #8
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Thanks a bunch for the pic now i have something to hunt for.
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Old 07-21-2018, 04:48 PM   #9
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this is what I have found.
https://ibb.co/e6Y9Wy
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Old 07-21-2018, 06:07 PM   #10
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Quote:
Originally Posted by Framebender View Post

this is what I have found.
https://ibb.co/e6Y9Wy
Just an FYI. On that page the URL directs to, there is a tab called "Embed codes" at the bottom.

If you click it, it gives the BBCode that you can use for the forum.

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