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why code descriptions different???

This is a discussion on why code descriptions different??? within the Computer & Tuning forums, part of the LSx Technical Help Section category; I noticed the SES light on and lucky for me I was on my way to Autozone. I scan it ...

  1. #1
    <b>"iznuthn"2 a BOSS!</B> IZNUTHN's Avatar
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    ONYX BLACK
    02 Z28

    why code descriptions different???

    I noticed the SES light on and lucky for me I was on my way to Autozone. I scan it and code P1416 pops up. I just check the DTC and they are completely different from eachother. On the scanner it said Mfctr auxilary emissions control but in the room here it. what do i do now? Can my O2 sensors or fuel injection cause these prob lems.

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    Depending on the scanner the descriptions can be a little different - go by the DTC code. See www.ls1.com/forums/showthread.php?t=1373 Also check to make sure the hose/gasket in the metal pipe where it connects to the header aren't leaking.

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    <b>"iznuthn"2 a BOSS!</B> IZNUTHN's Avatar
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    ONYX BLACK
    02 Z28

    which hose hose are you talking about?? well, i just put that bypass kit on. do you think that also could of caused the code.

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    The air check valve screws into the metal pipe on the air tube, the other end is connected with a hose and clamp. What bypass kit did you put on?

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    <b>"iznuthn"2 a BOSS!</B> IZNUTHN's Avatar
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    ONYX BLACK
    02 Z28

    under the throttle body....

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    Nah, TB bypass shouldn't throw P1416 - might get a different code(s) if you didn't plug the sensors back in though.
    Last edited by 2001NBMZ28; 12-19-2005 at 10:27 AM.

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    <b>"iznuthn"2 a BOSS!</B> IZNUTHN's Avatar
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    ONYX BLACK
    02 Z28

    yeah, the p1416 code description said manufacturers emissions auxilary controls

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    Looking it up at obdii.com for GM it comes up as "Secondary Air Injection (AIR) System, Bank 2."

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    <b>"iznuthn"2 a BOSS!</B> IZNUTHN's Avatar
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    ONYX BLACK
    02 Z28

    if i just erase the code will my car still be cool to drive??

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    It's OK to drive with P1416. If you erase it without fixing it it'll come back on after a couple cold starts though.

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    ONYX BLACK
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    okay, but if the code is pretty easy to fix how do i fix that again.

  12. #12
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    I'd replace the passenger side air check valve - get one from your local NAPA - once it's replaced the PCM will turn the SES off after a few cold starts, but the code will be stored in "history" for a while until that clears also.

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