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Secondary Air injection codes popping up

This is a discussion on Secondary Air injection codes popping up within the General Help forums, part of the LSx Technical Help Section category; I have 5 codes showing up on my car: DTC P0410 Secondary Air Injection (AIR) System DTC P0412 Secondary Air ...

  1. #1
    Junior Member blackTA6585's Avatar
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    Secondary Air injection codes popping up

    I have 5 codes showing up on my car:
    DTC P0410 Secondary Air Injection (AIR) System
    DTC P0412 Secondary Air Injection (AIR) Solenoid Relay Control Circuit Bank 1
    DTC P0418 Secondary Air Injection (AIR) Pump Relay Control Circuit Bank 1
    DTC P1415 Secondary Air Injection (AIR) System Bank 1
    DTC P1416 Secondary Air Injection (AIR) System Bank 2
    Can anyone tell me How I can get this fixed? What it involves?
    Thanks for the help.

  2. #2
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    Damn, you hit the AIR code jackpot! Is it still on the car? If it is first thing to check for P0410/P0412/P0418 is the air pump fuse under the hood. P1415/P1416 individually is the air check valves. Don't need it for emissions in Florida so you could do !AIR or just keep it and have the codes turned off. You can look up the codes/diagnostics at gearchatter.com
    Last edited by 2001NBMZ28; 01-22-2007 at 03:25 PM.

  3. #3
    Junior Member blackTA6585's Avatar
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    lol yeah I know, question: what is the air check valves and how can i get the codes turned off so they don't keep popping up?

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    Veteran 0rion's Avatar
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    98 Formula
    06 duramax


  5. #5
    Junior Member blackTA6585's Avatar
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    Thanks a lot, It was the fuse for the first three codes. But the P1415/P1416 still pop up some times. Would that have anything to do with the fact that I did the egr mod?

  6. #6
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    Don't think so, secondary air and EGR are separate. When I had P1416 it was just clogged with carbon deposits, replaced it and went away. GM PN for the air check valves is 12565503, but are available at your local parts store too.

  7. #7
    Member Corey1987's Avatar
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    yeh i just replaced both AIR valves, $12.25 apeice from Advance.

  8. #8
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    00 LS1, WS6, V8 Gremlin
    96 & 98 GTPs, 64 'Cuda

    I tend to see Secondary AIR codes a lot this time of the year and there's actually nothing wrong.

    Secondary AIR is a stupid air injection system that shoots extra air into the exhaust stream to help the catalytic converter deal with the richer mixture an engine has at cold start. When it's really cold &/or humid outside it doesn't work quite as well as the PCM expects it to, thus the code(s).

  9. #9
    Member Corey1987's Avatar
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    well damn, i guess i wasted 24.50 but now i got no check engine light so it was worth it to me, hhehe, now i gotta go put on some headers and a y pipe, peace all

  10. #10
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    00 LS1, WS6, V8 Gremlin
    96 & 98 GTPs, 64 'Cuda

    At $12 ea it was worth it as they do go out from time to time. If the codes stay away then it was time.

    If your area has a high incidence of going from hot & humid during the day to below the dew point at night moisture builds up in that system which eventually corrodes things.

  11. #11
    Junior Member blackTA6585's Avatar
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    That might be whats going on with mine.

  12. #12
    Veteran 0rion's Avatar
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    Well, my opinion is that in todays parts world $25 is a cheap fix.

  13. #13
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    Yeah it is, and that's for 2 parts and possibly 2 separate codes.

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