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  1. 06-26-2008 11:52 AM #1
    Audi Mind Trick
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    Secondary Air Injection pump

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    Anyone know of a way to test this to see if its working properly?
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  2. 06-26-2008 12:14 PM #2
    Nebone
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    Re: Secondary Air Injection pump

    Start you car up when the engine is cold like morning before work and listen for a spool, electric motor sound. Thats when it would kick in.
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  3. 06-26-2008 12:17 PM #3
    dynomike
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    Re: Secondary Air Injection pump

    yeah my car threw that code last week. i was quoted 400+ for parts alone....
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  4. 06-26-2008 12:20 PM #4
    Nebone
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    Re: Secondary Air Injection pump

    Its not something that the engine needs. It can be just removed and open ports can be blocked off. It will throw a CEL and stay on.
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  5. 06-26-2008 02:21 PM #5
    Big-Pat
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    Re: Secondary Air Injection pump

    Before you go and replace it, take the flexible hose off. If water comes out you have a bad combi(sp?) valve. (the pump could still be ruined)
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  6. 06-29-2008 09:07 PM #6
    TROLL
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    Re: Secondary Air Injection pump

    i have a cel for this as well. we replaced the rubber hose which was very worn out the the cel has stayed on.
    what is the next step to try to diagnose here? hoping to find the problem before i just start throwing money at it.
    thanks...
    bryan

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  7. 06-29-2008 10:07 PM #7
    keeganhartman
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    Re: Secondary Air Injection pump

    My SAI pump has been unplugged for about two months now, due to it shorting out on me. The pump is what helps with the functionality of your catalytic converter(s); although the possible harm that can be done without it i am not sure of. The combi valve on the other hand, if there is water in the pump lines, can be the cause of failure. I have heard that the valve is a little bit harder to replace though. I've been to a few pull your own parts junkyards around my way and found i can get the pump for about $30.
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  8. 06-30-2008 01:00 AM #8
    biketsai
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    Re: Secondary Air Injection pump

    It warms the CAT up when you start the car in order to reduce emissions. I pulled the pump out and I have a CEL, but F-it, itll go back in one day.
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