air pump question- keeping air to cats only

Discussion in 'Fox 5.0 Talk' started by BLOWN 5.0 FOX, Apr 29, 2007.

  1. BLOWN 5.0 FOX Member

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    I upgraded my heads, and do not have smog tubes. I do want to use the air pump still to keep my cats healthy (bbk high flows). Id love to get an offroad pipe but unfortunetly I live in MA and both the cops and the emissions tests are strict.

    I want to run the air pump without diverter valves straight to the pipe that leads to the cats. (running air at all times)

    A- will this be practical for the cats (will it help/hurt)

    B- Will I need to cap off the lines previously going to the diverters.

    I hope this will be an easy "mod" and I can clean up my engine bay from emissions clutter while saving my cats in the process.

    THANKS GUYS
  2. fox-gt Member

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    My new heads didn't have smog tubes either. I ran a piece of heater hose from the smog pump air bypass valve to the air tube that goes to the h-pipe. I only had to plug one vacuum line, the line that went to the air diverter valve (the one in the middle)
  3. BLOWN 5.0 FOX Member

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    so in other words- just the bypass valve thats on/off? I guess that would make sense. THANKS
  4. fox-gt Member

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    I have seen people on here before ask which lines go where. So I created these. Hope they help someone.

    Stock
    [IMG]


    mine
    [IMG]

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