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O2 Sensor Connection Cable Missing! HELP!!

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Old 09-18-2013, 06:46 PM
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Icon9 O2 Sensor Connection Cable Missing! HELP!!

I bought A 1996 Prelude 2.3L Non V-tech. Automatic. 67,342 Miles.
It has a couple issues, apparently all are electric issues.

1.-Check engine light on = Error Code 41, Witch is the O2 HEATER SENSOR
*I went under the car and Noticed The O2 Sensor Cable next to the catalitic is unplugged and is just hanging, The other part of the cable that comes from the wire harness seems to be missing.

2.-The AC Power Cable does Not Send Any Voltage And Therefore My AC Does Not Turn On when I try To Turn it on from the dash. It does turn on if I connect a cable directly from the battery to the AC Power Cord from the AC, (I did this for testing purposes just to see if the AC Worked)

3.-The Honk Does Not Work, It seems to be Unpluged.
I have read a reasonable amount of info on the internet including here and I find my self really confused. Some people say sometimes it could be that they replaced the wiring harness or a previous engine swap with the wrong harness, or they just did'n finish a proper engine swap and forgot to add the right connections because they used a different harness etc.

**-- I would be really be thankful if anyone would provide me with any info to get this couple issues fixed, this is my first car and I love it! lol---**
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Old 09-19-2013, 09:58 AM
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Re: O2 Sensor Connection Cable Missing! HELP!!

Congrats on your purchase. Sounds like a dandy car minus a couple of issues.
Also sounds like you've done some homework.
Unfortunately many lose patience with harness work or forget to hook stuff back up. Or it could be stuff has failed.

Sounds like time for a junkyard run. lists them in the state you choose. is a national used parts source.

Go to the diy/all service manual thread and download a pdf manual. I'm unfamiliar with the 4th, but there is an electrical chapter that'll show you the circuits and you can figure out which a/c switch is failed. Also you can learn your honk circuit.

Also go to and find the part you need. Type that part number in the search bar to gain insight on which other hondas use the same part.
There are numerous items not specific to the prelude that honda warehouses will say they are out of when searching for prelude parts.
Example: they said they were out of hood prop grommets for the 3g prelude. That same part is in use in accords to this day.
Also just the other day I got a like new rear view mirror from an 07 accura 3.2 to replace a fading one in a 91 prelude.

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Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

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Last edited by bykfixer; 09-20-2013 at 01:40 PM.
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Old 10-14-2013, 11:11 AM
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Re: O2 Sensor Connection Cable Missing! HELP!!

For your O2 sensor if you hold the harnesses up to each other like your trying to plug them in together then you will see which wires connect where. Then cut the harnesses off and solder the wires together
1995 Prelude S (Lucy)
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ac connection, electrical, harness, o2 sensor

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