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How to pass DEQ with 90 sub w/350????

Discussion in 'The Garage' started by y5mgisi, Nov 18, 2003.

  1. y5mgisi

    y5mgisi 1 ton status

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    THe truck is a stock sub with a 350 and TBI and 200,000 miles and it wont pass DEQ. Last time i went through it took me about 3 times but it finally passed. Is there any tricks that i can do that will help? like timing, vac.lines? anything like that? /forums/images/graemlins/ears.gif
     
  2. rick88blaze

    rick88blaze 1/2 ton status

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    a good tune up, new O2 sensor, new fuel filter, new air filter. if you have tried these already, you might try to retard your timing a little bit. /forums/images/graemlins/thumb.gif

    Rick
     
  3. y5mgisi

    y5mgisi 1 ton status

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    ok thanks rick, oh yeah i like your quote. I get that all the time too /forums/images/graemlins/thumb.gif
     
  4. BurbinOR

    BurbinOR 3/4 ton status

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    In addition, make sure it is HOT..........run it hard on the way to the DEQ station - which one are you trying to run it through at? I always use 181st and Powell - around lunchtime no one around, drive right up.
     
  5. rick88blaze

    rick88blaze 1/2 ton status

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    I'm just glad I could help. /forums/images/graemlins/thumb.gif

    Rick
     

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