Newbie with cut O2 sensor wire question
Thread Starter
|
New User
Joined: Aug 2007
Posts: 4
Likes: 0
Newbie with cut O2 sensor wire question
Greetings from Birmingham, AL! I bought a '92 Explorer recently and it is throwing a "heated oxygen sensor - right side" error code. Runs rough on occasion and uses gas like it's going out of style.
I thought, okay, I'll replace the bad O2 sensor... I've been looking all over this 4.0 engine for the location of the bad sensor and can't seem to find where Chilton says they're supposed to be. Chilton says there should be one on each side at the manifold. Left side has one there but not the right. I did find one on the engine side of the converter and was certain it couldn't be that one because it only had two wires coming out of it.
After tracing the two wires to the plug, I found that two other wires were cut at the sensor end and at the plug end. If this is the one causing the error code, why would someone cut the wires from a 4-wire sensor to make it a 2? I was going to invest in a new 4-wire sensor, but if the original was cut to avoid a bigger problem, I don't know if I should. HELP!
Thanks in advance for your advice.
John
Birmingham, AL
I thought, okay, I'll replace the bad O2 sensor... I've been looking all over this 4.0 engine for the location of the bad sensor and can't seem to find where Chilton says they're supposed to be. Chilton says there should be one on each side at the manifold. Left side has one there but not the right. I did find one on the engine side of the converter and was certain it couldn't be that one because it only had two wires coming out of it.
After tracing the two wires to the plug, I found that two other wires were cut at the sensor end and at the plug end. If this is the one causing the error code, why would someone cut the wires from a 4-wire sensor to make it a 2? I was going to invest in a new 4-wire sensor, but if the original was cut to avoid a bigger problem, I don't know if I should. HELP!
Thanks in advance for your advice.
John
Birmingham, AL
Fleet Mechanic
Joined: Oct 2004
Posts: 1,394
Likes: 104
From: Southern KS
You will want to replace it with the 4 wire part and splice the wires back together if they are on the harness side of the connector. I have never heard of anyone cutting these wires. Two are for heating and two for exhaust sniffing. It would definitely throw a code with the cut wires.
Thread
Thread Starter
Forum
Replies
Last Post
dchamberlain
6.0L Power Stroke Diesel
23
Apr 25, 2023 11:18 PM
EcoBooStang
2009 - 2014 F150
1
Aug 17, 2016 07:17 AM
Legal Lariat
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
14
Nov 1, 2015 09:28 PM
