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would anyone like to explain

This is a discussion on would anyone like to explain within the General Help forums, part of the LSx Technical Help Section category; My ses light has been on for about a year,p1133 and p1153,02 ws6 with longtube headers,understand these codes happen with ...

  1. #1
    autoconnectionllc.com 02transamce's Avatar
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    would anyone like to explain

    My ses light has been on for about a year,p1133 and p1153,02 ws6 with longtube headers,understand these codes happen with longtube ls engines because of O2 sensor location,anyway i cleared the codes with my scanner friday afternoon,my wife says it gets better fuel mileage when the ses light is off,and we left for panama city,fl well,the ses light stayed off the whole way(160 miles) but as soon as we started the city style driving,low speeds,stop and go driving the ses light came back on,i brought my scanner with me and cleared the codes but they would come back very soon driving around town.so this morning i cleared the codes and we drove back home.three hours on the highway and no ses light.why does the ses light come on in city driving but not in highway driving?
    Last edited by 02transamce; 05-22-2011 at 08:55 PM.

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    She Moderator KahanaReef's Avatar
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    I'll bite...


    Explain what?

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    autoconnectionllc.com 02transamce's Avatar
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    It should be there now kahana.
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    Smiles for 9.5 Years cammed goat's Avatar
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    Is it a code for a malfunctioning O2?

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    autoconnectionllc.com 02transamce's Avatar
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    Yes. O2 sensor insufficient switching
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    Slow'er'Ass Mr. Luos's Avatar
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    Highway the O2 sees little change in switching (variance in ohms).
    In the city, it sees changes all over the place as the RPM's are changing.

    If you are seeing O2 codes (that are NOT rear O2 codes) then it is time for new O2's. Mileage may be better, but you could be damaging the motor running that lean.


    EDIT: Missed the last 2 posts.

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    autoconnectionllc.com 02transamce's Avatar
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    Mr. Luos ftw! That makes very good sense.thank you.the O2s are a year old changed them when the codes showed up did not help (Denso O2 sensors) my tuner seems to think they need more heat and has advised me to insulate the O2s with header wrap,i just haven't done it yet,too many more important issues to deal with.
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    Smiles for 9.5 Years cammed goat's Avatar
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    Quote Originally Posted by 02transamce View Post
    Yes. O2 sensor insufficient switching
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    Ah. "Lazy" O2s.

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    autoconnectionllc.com 02transamce's Avatar
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    Car runs much richer with the light on.others have suggested running corvette O2 sensors.they say the heating element is hotter than a f body O2, will go that route if the header wrap thing doesn't work. I HATE that light being on!
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    She Moderator KahanaReef's Avatar
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    Quote Originally Posted by 02transamce View Post
    It should be there now kahana.
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    That was a delayed reaction

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    autoconnectionllc.com 02transamce's Avatar
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    Nobodys perfect.
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    Smiles for 9.5 Years cammed goat's Avatar
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    I just looked online. You will need to either have the rear O2s tuned out, have the old sensor bungs welded shut and new ones drilled/installed, or buy a replacement set of headers with the bungs in the correct locations.

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    autoconnectionllc.com 02transamce's Avatar
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    Rear O2 sensors tuned out by speedsouth after header install.
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    Smiles for 9.5 Years cammed goat's Avatar
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    Are they ARH?

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    Slow'er'Ass Mr. Luos's Avatar
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    This is NOT a problem with the rear O2's being missing/gone/etc.



    From my understanding.....the common problem with Bosch O2's and longtubes is the heater circuit.
    I don't doubt the same problem could be created with Denso's.
    Brand new Bosch O2's throwing a code due to location. They simply don't see the heat they are supposed too.
    Honestly don't see header wrap fixing this.

    I personally never had a problem with the Delco O2's (rear C5's) I had on my old T/A. I felt they were worth the $$$ for them.
    It had Kooks 1 7/8" on it. What I will be getting for the TBSS.
    Last edited by Mr. Luos; 05-22-2011 at 09:26 PM.
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  16. #16
    Smiles for 9.5 Years cammed goat's Avatar
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    Just looked again. p1133 is supposedly for a front O2. That will need to be replaced asap.

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    autoconnectionllc.com 02transamce's Avatar
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    Corvette C5 rear O2 delco sensors? Does it matter about ls1 or ls6 engine? Need to know what will fix this issue,thanks!
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    autoconnectionllc.com 02transamce's Avatar
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    Quote Originally Posted by cammed goat View Post
    Are they ARH?
    No.pacesetter.
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  19. #19
    Smiles for 9.5 Years cammed goat's Avatar
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    OK. Never heard anything about Pacesetters. But I read the p1133 is a front O2 code. I dunno which one at the moment, but it will need to be replaced.

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by 02transamce View Post
    Corvette C5 rear O2 delco sensors? Does it matter about ls1 or ls6 engine? Need to know what will fix this issue,thanks!
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    I wasn't.....but had no problems with O2 switching.

    The only thing you want from your O2's is to be accurate. If Bosch/Denso can't do it....time to try the Delco's.
    Sadly, they aren't cheap. Try GMPartsDirect.
    I am getting Delco part # 25317697
    Not searching too deep though.

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