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Where is the diagnostic plug to check CEL codes??

Old 30-Mar-2010, 07:04 PM
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Where is the diagnostic plug to check CEL codes??

Hey guys,
So my check engine light turned on about 2 weeks ago, and I have been researching how to get the codes myself. I know that to do this you need to find the 2 pin diagnostic plug and jump it with a paper clip. The plug is supposed to be located on the passenger side, kind of under the glove box, but I haven't been able to find it. I've had some others look as well, but they are by no means honda experts lol. Is there anywhere else that it would be located? Maybe it looks different with my car, or it's just been shoved behind some other stuff after all these years? If you have done this before on a 95 ej1, could you let you me know if it was really as simple as everything I'm reading says it should be? I'm feeling like an idiot but I don't want to start ripping things apart until I least know I'm looking in the right place.. Thanks
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Old 30-Mar-2010, 10:33 PM
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find your ecm/ecu and the wire should be out of there it will just look like a plug not plugged in. i had to pull out my carpet to get at mine because it was tucked underneath
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Old 01-Apr-2010, 08:15 PM
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Thanks, finally found it, it was tucked up behind some other wires. It's actually pretty neat how this works! Jumped the plug, key to the "II" postition and it flashed the code forty one (4 long, one short), which was the primary oxygen sensor heater.. Replaced it, the check engine light went off and it passed the etest!
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Old 01-Apr-2010, 08:22 PM
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Congrats. I hate when etest time comes by.
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Old 01-Apr-2010, 08:35 PM
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Lol me too, and my check engine light decides to come on when I need it done too, glad it was a minor problem! I couldn't get the o2 sensor off myself either, so I brought it into a little exhaust shop in oakville and the guy helped me out for free!
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Old 01-Apr-2010, 08:37 PM
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thats nice of him! U need a special socket for them and alot of lubrication. I remember when i needed to do it for my 89 prelude. OHHHHH MAN! That was hard.
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Old 01-Apr-2010, 08:46 PM
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Ya I even spent $20 on that socket, and tried putting penetrating oil on it but it was stripping the sensor. The one I bought didn't look like the one the guy used though, his had a way smaller slit for the wires, mine had like a half inch cut out of the side.. I was surprised he did it for free too because my brother recently paid $100 to get 2 o2 sensors put on his VW lol..
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