Oxygen sensors - clean before replacing
04-04-2006, 05:38 PM
#1
100% chingon
Thread Starter
Join Date: Oct 2005
Posts: 1,003
Oxygen sensors - clean before replacing
From the ecu code I got bad sensor 1, so I was expecting to replace it.
I took the car to my reliable mechanic, mainly for other reasons than the sensor.
He used a code reader and what he got was more information than I had from the ecu flash-codes. The reader said that one sensor was totally out, the other was pretty bad, and also that the ECT wasn't giving the correct reading.
He removed both oxygen sensors and cleaned them up. Apparently they were full of carbon and crap. He also cleaned the ECT.
Now the CEL is off, the temp gauge seems to be indicating temperatures more like what I expected, and the car is running great.
Therefore, especially if you're short of cash, CLEAN the sensors before replacing them!
I took the car to my reliable mechanic, mainly for other reasons than the sensor.
He used a code reader and what he got was more information than I had from the ecu flash-codes. The reader said that one sensor was totally out, the other was pretty bad, and also that the ECT wasn't giving the correct reading.
He removed both oxygen sensors and cleaned them up. Apparently they were full of carbon and crap. He also cleaned the ECT.
Now the CEL is off, the temp gauge seems to be indicating temperatures more like what I expected, and the car is running great.
Therefore, especially if you're short of cash, CLEAN the sensors before replacing them!
04-05-2006, 06:47 AM
#6
There is no proper way to clean an o2 other than taking a torch to it to burn of the deposits. Any other method will SIGNIFICANTLY shorten the life of the sensor, especially using a solvent.
04-05-2006, 06:53 AM
#7
Yea most of times an o2 goes "bad" its clogged with carbon desposits, and prevents an acurate reading there for throwing a cel. Wouldnt hurt if we throw a code for o2, take it out, clean it up, spray some TB cleaner, use some compressed air and try to restore it back, unless its just dead.
04-05-2006, 08:55 AM
#9
Originally Posted by MDeezy
Yea most of times an o2 goes "bad" its clogged with carbon desposits, and prevents an acurate reading there for throwing a cel. Wouldnt hurt if we throw a code for o2, take it out, clean it up, spray some TB cleaner, use some compressed air and try to restore it back, unless its just dead.
Originally Posted by nismology
There is no proper way to clean an o2 other than taking a torch to it to burn of the deposits. Any other method will SIGNIFICANTLY shorten the life of the sensor, especially using a solvent.
04-05-2006, 10:42 AM
#10
Originally Posted by 1995WhiteMaxima
compressed air? where the heck am i getting compessed air? AIr in a can? LMAO... The TB cleaner i can do.
04-05-2006, 11:48 AM
#12
Originally Posted by nismology
There is no proper way to clean an o2 other than taking a torch to it to burn of the deposits. Any other method will SIGNIFICANTLY shorten the life of the sensor, especially using a solvent.
What is the solvant eating away at to shorten the life of the sensor?
04-05-2006, 11:59 AM
#13
Senior Member
Join Date: Jul 2005
Posts: 118
Originally Posted by Maxima-4DSC
walmart - cambell hausfeld compressor 200 bucks....home depot air tool kit with 8 tools -- 150 bucks --- look on your face after pulling the trigger of the impact gun --- priceless
04-05-2006, 12:13 PM
#14
Donating Maxima.org Member
Join Date: Jun 2003
Posts: 384
Originally Posted by 1995WhiteMaxima
like i care how much o2 is in my exhaust...right?
my question -> does the ECU throw a different code if the O2 sensor is dead verus just being clogged?
Also, I have an inspection coming up, I'd rather have an O2 sensor that works cause it was cleaned, maybe it has a shorter life, but it'll work for a while at least right?
04-05-2006, 02:54 PM
#15
Senior Member
Join Date: Jul 2005
Posts: 118
Originally Posted by NookieMax
I hear that buddy,
my question -> does the ECU throw a different code if the O2 sensor is dead verus just being clogged?
Also, I have an inspection coming up, I'd rather have an O2 sensor that works cause it was cleaned, maybe it has a shorter life, but it'll work for a while at least right?
my question -> does the ECU throw a different code if the O2 sensor is dead verus just being clogged?
Also, I have an inspection coming up, I'd rather have an O2 sensor that works cause it was cleaned, maybe it has a shorter life, but it'll work for a while at least right?
04-05-2006, 04:25 PM
#16
Senior Member
Join Date: Feb 2006
Posts: 127
It seems like every single person on this site has a bad O2 and KS, or at least had them at some point. We need someone to figure out some hack with a resister or some kind of a secret freakin code for the computer or SOMETHING to make the ECU no longer care about that damn rear O2 sensor. The sensor is only there to please hippy idealistic tree huggers and has nothing to do with performance. I dont want to clean it, i dont want to pay $$ to replace it, i just want that damn thing to f'ing die and leave my MILF light alone. I mean MIL light.
04-05-2006, 05:39 PM
#17
Originally Posted by Motorhead52
It seems like every single person on this site has a bad O2 and KS, or at least had them at some point. We need someone to figure out some hack with a resister or some kind of a secret freakin code for the computer or SOMETHING to make the ECU no longer care about that damn rear O2 sensor. The sensor is only there to please hippy idealistic tree huggers and has nothing to do with performance. I dont want to clean it, i dont want to pay $$ to replace it, i just want that damn thing to f'ing die and leave my MILF light alone. I mean MIL light.
I have the rear 02 sensor light on and all I do is ignore it. Sometimes the lights stays off but then it pops back up. Really annoying. Why change it if it doensn't do anything with mileage or power?
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