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| Forum name | Performance/Engine |
| Topic subject | o2 sensor stuck in negative.... |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=47023 |
47023, o2 sensor stuck in negative.... Posted by brynden29, Mar-19-03 03:23 AM
Anyone know if this means that my o2 sensor is dead? It never gets out of negative. The car runs, and when I get on it, it seems fine. At low throttle is has problems sputtering and what not. Can I clean my o2 sensor? I have disconnected the battery to try to reset the ECU just in case. I want to clean the o2 before I start it back up. I can not afford to replace it now. Is there another sensor that works?
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47024, RE: o2 sensor stuck in negative.... Posted by DarkOne, Mar-19-03 04:18 AM
You can buy a 4 wire Bosch universal replacement for about $60. It's dead, Bryn. Cleaning it probably won't help.
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47025, RE: o2 sensor stuck in negative.... Posted by Michael_97RS, Mar-19-03 04:25 AM
Yeah, sorry to say it sounds dead.
I believe both front and rear are the same heated O2 sensor... you could probably cut and splice swapping the two... That is if the rear isn't shot also.

15.9 @ 86.7mph 97 Eclipse RS
Injen CAI, 55mm TB, P&P Intake, Crower Stage 2 Cams, Hooker Header, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC
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47026, RE: o2 sensor stuck in negative.... Posted by JasonESi_T, Mar-19-03 04:45 AM
I had some friends (1g guys) tell me you can take a propane torch to your O2 sensor in an effort to "clean" it.
I didn't say anything in response to that theory, as I probably doubt it. You might want to give it a try for fun though.
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47028, RE: o2 sensor stuck in negative.... Posted by optimuspeterson, Mar-19-03 05:23 AM
i have gone through 2 bosch o2 sensor in two months. just something to think about.
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47032, RE: o2 sensor stuck in negative.... Posted by DarkOne, Mar-19-03 06:25 AM
Mine's been fine for over a year now. *shrug*
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47034, RE: o2 sensor stuck in negative.... Posted by brynden29, Mar-19-03 07:13 AM
Where can I get a bosch sensor?
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47049, RE: o2 sensor stuck in negative.... Posted by optimuspeterson, Mar-19-03 10:08 AM
autozone
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47060, RE: o2 sensor stuck in negative.... Posted by mcgyvr, Mar-19-03 11:35 AM
Please DONT get the bosch, its a POS and 99% (yes darkone your the 1%) have failed in under 1 year. get the mopar one, call Bob Kise and get one.
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47073, RE: o2 sensor stuck in negative.... Posted by optimuspeterson, Mar-19-03 01:47 PM
so do we order the neon o2, or the avenger o2? or will bob kise know which one we want.
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47087, RE: o2 sensor stuck in negative.... Posted by XtremeRS, Mar-19-03 04:29 PM
I had a Bosch also. Went kaput in about 6 months. Matt_95tgs's brother's GSX had one too, that went bad in less than a year. IMO, go with the stock OEM replacement o2 sensor. Yes, its more money, but they last. You get what you pay for :)
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47090, RE: o2 sensor stuck in negative.... Posted by juggalo, Mar-19-03 05:01 PM
this may be a little off the subject, but on my ODB2 code reader it shows that my front o2 isn't working. my A/F guage works just fine though. could my 02 sensor need replacing? is a bosch, got it about 3 or 4 months ago.
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47118, RE: o2 sensor stuck in negative.... Posted by mcgyvr, Mar-20-03 03:00 AM
>this may be a little off the subject, but on my ODB2 code >reader it shows that my front o2 isn't working. my A/F guage >works just fine though. could my 02 sensor need replacing? >is a bosch, got it about 3 or 4 months ago.
Yes your o2 is bad, you will still see it working on your a/f guage but the swing/frequency of the swing isnt up to par. It will still work it just wont switch values/etc.. like it should . For example a good one will swing from .1vdc to .8vdc during idle maybe 10 times, while a bad one will still swing from .1 to .8 vdc during idle but only 5 times. its bad .
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47099, RE: o2 sensor stuck in negative.... Posted by Matt_95tgs, Mar-19-03 06:01 PM
Actually, the bosch sensor on my brothers gsx crapped out in less than one month :rolleyes
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47119, RE: o2 sensor stuck in negative.... Posted by mcgyvr, Mar-20-03 03:01 AM
>so do we order the neon o2, or the avenger o2? or will bob >kise know which one we want.
Bob will know but just tell him its the upstream o2 sensor for the 2.0L 4 cylinder dodge avenger.
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47120, RE: o2 sensor stuck in negative.... Posted by mcgyvr, Mar-20-03 03:03 AM
and brynden if yours is always negative its either really bad (which I dont think it will even get that bad where its showing negative, I think you might have some wiring problems. What negative voltages are you seeing????
Maybe you have the polarity backwards on whatever your reading o2 voltage off of???
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47121, RE: o2 sensor stuck in negative.... Posted by brynden29, Mar-20-03 03:14 AM
I dunno, all I know is that it worked one night, the next morning it didn't. Check it out....
http://forums.2gnt.com/dcboard.php?az=show_topic&forum=32&topic_id=87&mesg_id=87&page=
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47122, RE: o2 sensor stuck in negative.... Posted by mcgyvr, Mar-20-03 03:33 AM
what are you reading o2 voltages on??? If its an safc thats your problem, mine crapped out this weekend causing my ECU to see o2 sensor voltages OVER 2 VDC, it was not a pretty site. Basically the insulation on that shitty wire is SOO thin and cheap that it allows voltage to leak from another wire when it gets wet causing a short. I had the map sensor circuit seeing bad voltages, the TPS circuit shorting to ground causing my tranny to go into limp mode, o2 voltages soo high I could drink the pure gas coming out of the tail pipe.
But I guarantee its NOT your o2 sensor.
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47124, RE: o2 sensor stuck in negative.... Posted by brynden29, Mar-20-03 03:44 AM
I am reading the voltage on my A/F guage. I have a digital guage. Also I tried using my datalogger to see the voltage amd the o2S11 SHRTFT11 reads 0.000 24.2. Is that what you were wondering?
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47134, RE: o2 sensor stuck in negative.... Posted by mcgyvr, Mar-20-03 05:15 AM
Id check the wiring to the guage, or hook up a voltmeter to the o2 signal wire to verify.
Seems to me that youve got a wiring problem, is the voltage swinging. ie does it go from -1 to -.1vdc or something
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