O2 Sensor wires

[nktidwel]

Where do the sensor 2 wires begin? What colors are they? I have looked under my Ranger and they are non existant. There is a sensor, minus any wiring in the exhaust. There is a short somewhere that I need to trace.

 

[bilzy7]

Sounds like you found it. If there's no wires coming off the 02 sensor from cat then boom that's your short.

 

[bilzy7]

I am also trying to troubleshoot my obd2 problem... Can't pull codes from it.

 

[nktidwel]

Bilzy7, there are no wires after the first O2 sensor, therefore it makes it harder to trace my problem. does your obd have power? I pull codes from several vehicles a day, the most common reason I cant pull the code right away is simply a blown fuse.

 

[bilzy7]

Ya I did all my fuses and it is a power issue as my lighter is also out which would point to a blown fuse but I replaced all fuses in door fusebox and engine bay fuse box. All 5-30 amp fuses. Big ones and box style ones I haven't touched. Both my 02 sensors from cats have wires going into them. Weird there isn't a hanging wire for you to trace.

 

[nktidwel]

Pull your lighter out completey. Those do go bad too, and yours could have an internal short. Or, if yours is anything like mine, I had several bad, bare, and melted wires behind my in cab fuse panel. In my Full Size Blazer I couldnt make my horn work, until I replaced the lighter, b/c it kept blowing the fuse....

If you were to trace the wires from the second o2 sensor, where do they end up? I am pretty sure when I fix those I wont blow the fuse.

 

[bilzy7]

Hmm watching my son. My next cigarette I will go outside and trace wires as far as I can and take a pic. Hmmm. Good idea I'll have to look behind fuse panel. I did pull radio out and checked there and everything was fine.

 

[nktidwel]

unrelated... Why are there 2 starter solenoids? one on the fender and one on the starter?

 

[bilzy7]

I'm about to upload pics, but the second sensor on passenger side ties into the wiring above tranny and follows tranny and goes up on the passenger side. It's all taped/wire loomed together so I can't follow individual wires, but the wire from second 02 sensor plugs in less then a foot from it above transmission. Photos coming.

 

[bilzy7]

Ammm, I never really checked mine I just know of the drivers side one by battery.

 

[bilzy7]

second 02 bung

wire from second 02 bung

where it connects above tranny into as-f*&k of wires.

after that it all ties together into a thick pair of wires and goes up along passenger side. its easy to trace from their i couldnt get good enough photos from engine bay of top end.
hope this helps.

 

[nktidwel]

It seems mine are different. '95 2.3 5sp I cannot see after they reach the top of my trans. Reaching up, I felt several wires entering the loom, so tracing would be more like guessing. A FSM or a good schematic would be good. I'll have to call someone with alldata and see if he can get some info.

 

[bilzy7]

Mirror to see up there? Maybe an open connector or connector with loose wires.

 

[nktidwel]

Guess I'll have to get one (mirror) while i'm at work tomorrow afternoon.

 

[nktidwel]

I "think" I found the second plug... Next to the speed sensor there is a harness that looks identical to the the other that leads to the front sensor. FYI driver side... no exhaust there; why is the plug there?