Thread: can't get rid of P0135!!

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  1. #1 can't get rid of P0135!! 
    GT Level Member des19's Avatar
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    Ok so I have been trying to get rid of this p0135 code for a while now with no luck. First things first,

    installed a brand new delphi 02 sensor upstream. Erased the code with the scanner. 3 days later the same code comes back up.

    Bring the car back in and they run diagnostics to check what the problem could be, then they say that the sensor itself may be the issue with the sensor itself getting a reading of 8 ohms (suppose to be 5 ohms)?

    Where else could I go from here? Another sensor is going to run like 150$

    wtf?!
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  2. #2 Re: can't get rid of P0135!! 
    SE Level Member crysalis's Avatar
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    I had this code for a month or two and had a similar issue. Ended up being a vacuum hose leak. Do a smoke test! Can't hurt anything...
    2006 GP GT S/C | CAI | Overkill PCM | PLOG | 3" Catted DP | ZZP Strut Brace -- SOLD the car in treason for a Hemi Charger >:]
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  3. #3 Re: can't get rid of P0135!! 
    GT Level Member des19's Avatar
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    ok thanks havn't tried that yet
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  4. #4 Re: can't get rid of P0135!! 
    GT Level Member des19's Avatar
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    anyone know if the shop is correct in saying that 8 ohms on the sensor is a bad reading or are they wasting my time?
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  5. #5 Re: can't get rid of P0135!! 
    SE Level Member crysalis's Avatar
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    I may be wrong here, but o2's output voltage... You dont necessarily go by resistance to call it faulty.

    I'd get a voltmeter and test it yourself. Make sure engine is up to temp and check for it fluctuating around .5-.9v.
    Last edited by crysalis; 08-07-2012 at 11:50 AM.
    2006 GP GT S/C | CAI | Overkill PCM | PLOG | 3" Catted DP | ZZP Strut Brace -- SOLD the car in treason for a Hemi Charger >:]
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  6. #6 Re: can't get rid of P0135!! 
    GT Level Member des19's Avatar
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    alright thanks
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  7. #7 Re: can't get rid of P0135!! 
    Turbo is the way to go. BillBoost37's Avatar
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    Whats a p0135? Mind writing what the name of the code is?
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  8. #8 Re: can't get rid of P0135!! 
    SE Level Member crysalis's Avatar
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    Oxygen O2 Sensor Heater Circuit Malfunction
    2006 GP GT S/C | CAI | Overkill PCM | PLOG | 3" Catted DP | ZZP Strut Brace -- SOLD the car in treason for a Hemi Charger >:]
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  9. #9 Re: can't get rid of P0135!! 
    GT Level Member t24moore's Avatar
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    Make sure the harness isnt damaged. Sometimes the wires can short together causing this code. Also, what thermostat are you running? This code will be thrown if the O2 sensor takes too long to heat up.
    Comp Turbo 6765 T4-ST5-A2A IC-Ported Heads-Custom Turbo headers-80 lb inj-F-Body UIM and LIM-AEM WB, TEP trans w 1" chain and Circle D TC, Dual 255s, Bilstien Struts
    WHY IS EVERYONE SO OPPOSED TO DOING A COMPRESSION TEST TO TROUBLESHOOT PROBLEMS?
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  10. #10 Re: can't get rid of P0135!! 
    GT Level Member des19's Avatar
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    Had the mechanic run diagnostics on it. Harness seemed fine. i am running a 180 t stat but the code was there before I put that in if I can remember. The code came up a year ago and I am trying to get rid of it in the past month or so. so def not the t stat.

    engine light doesn't wanna go away!!!
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  11. #11 Re: can't get rid of P0135!! 
    Moderator dsmuts's Avatar
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    If all else fails just tune the code out.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
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  12. #12 Re: can't get rid of P0135!! 
    GT Level Member des19's Avatar
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    Quote Originally Posted by dsmuts View Post
    If all else fails just tune the code out.
    never thought of that..but then would have to send pcm in to overkill most likely as I don't tune.
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