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PO134 PO154 Codes

This is a discussion on PO134 PO154 Codes within the Computer & Tuning forums, part of the LSx Technical Help Section category; Hi guys i installed LTs about a month ago. I spliced my O2s and am throwing 2 codes, I used ...

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    Junior Member WonFastWS6's Avatar
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    PO134 PO154 Codes

    Hi guys i installed LTs about a month ago. I spliced my O2s and am throwing 2 codes, I used 16 gage wire to splice in the extensions. I also checked for continuity between all wires so I know I have good connections I'm going put fuel injection cleaner in and see if that clears it up. I did a search and read that might help. I also checked, there's no burn marks in the harness either. Can any one help me with these codes?

    PS LSXTune Tuned out my rear O2s also

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    Junior Member WonFastWS6's Avatar
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    Just took the car to breakfast ses light came on INJ cleaner didn't work

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    Junior Member WonFastWS6's Avatar
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    K guys I think what has happened is that I used the wire that jegs sent me on my rear 02s, put them in, ran the car, through a PO155, did a search, saw that this was a heater malfunction, so i planed on getting extensions for the fronts and doing it the right way. but then i thought what the hell, it worked on the rears so i spliced the fronts. I just grabbed some 16 gauge wire splice them in grab my vantage meter check them for continuity all was well through both of them in now Im throwing these codes what i suspect has happened is that the 16 gauge wire is sending too much ohms or voltage through the wire and causing a malfunction. tomorrow i'll put my rears back in and see what happens. my question: is there special wire that i should be using? also if my problem was the 16 gauge wire why would it show no activity at all?

    Dose this make sense to any one, no one had this problem
    Last edited by WonFastWS6; 09-08-2008 at 05:34 PM.

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    TunedbyFrost.com Tuner Frost's Avatar
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    Quote Originally Posted by WonFastWS6 View Post
    K guys I think what has happened is that I used the wire that jegs sent me on my rear 02s, put them in, ran the car, through a PO155, did a search, saw that this was a heater malfunction, so i planed on getting extensions for the fronts and doing it the right way. but then i thought what the hell, it worked on the rears so i spliced the fronts. I just grabbed some 16 gauge wire splice them in grab my vantage meter check them for continuity all was well through both of them in now Im throwing these codes what i suspect has happened is that the 16 gauge wire is sending too much ohms or voltage through the wire and causing a malfunction. tomorrow i'll put my rears back in and see what happens. my question: is there special wire that i should be using? also if my problem was the 16 gauge wire why would it show no activity at all?

    Dose this make sense to any one, no one had this problem


    I hope that you added to the SENSOR's side of the wiring and NOT your car's HARNESS side. It seems that often times when people try to lengthen their front O2s they end up with problems. If you are using butt connectors for splices, they are immediately suspect; you are dealing with only 450mV. If your connections are correct and SOLDERED, you *should* be ok.

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    Junior Member WonFastWS6's Avatar
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    Just to update you guys i bought new o2s and extension's and fix the problem no more ses light thanks frost

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    TunedbyFrost.com Tuner Frost's Avatar
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    Great that's good to hear.

    If you need anything else, just give me a shout.

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    Senior Member Too Fast's Avatar
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    Nice update. Usually when the code is for a heater problem in the O2 sensor, it is just that, an O2 sensor issue, unless somebody has done a botched wiring job.

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    Junior Member WonFastWS6's Avatar
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    Yea that was me who did the botched job but you live and you learn thanks guys

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