Thread: Header o2 Sensor Code P1133 Help

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  1. #13 Re: Header o2 Sensor Code P1133 Help 
    GXP Level Member coolone's Avatar
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    Quote Originally Posted by brandonl2000 View Post
    Well. I'm sure someone else can tune in better about how the o2 sensor affects the timing and fueling and junk.

    But from my understanding, an active o2 sensor is GOOD thing. The reason it throws that code from my understanding is the location of the o2 sensor or the added exhaust. Either way, if your o2 sensor is good, toss the code. Secondly, blips of KR is not uncommon. be glad its not a steady 2-3* it could be false, but as light as it is i just imagine it's legit. i didn't bang in my firewall and mine clears just fine so who knows.
    Thanks for the reply!

    Yeah, the Knock is weird, will show but not steady. Scan at 1 sec intervals will be like this...
    0,0,0,1.4,2,1.8,1,0,0,0,0... seems to be top of gears and also a few times while in high gear and slowing down (+load) while climbing hills.

    The O2 is clear of the firewall side (underneath).


    Quote Originally Posted by Fivefingerdeathpunch View Post
    o2 volts will always bounce from 150-800ish when just bumming along or at idle and will dial in around 940's when WOT.

    The 1133 code will be there more a while, then atleast for me, it stops running that check and the code never appears again.
    Interesting... and thanks!

    maybe then I should stop resetting it, lmao!
    Last edited by coolone; 02-17-2012 at 09:36 AM.
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