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  1. #11

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    i bought this stuff from autozone called guaranteed pass, i put it in but havnt gone back yet to do the test you have to run it through a full tank first. i also went to my buddys shop on he ran an OBD1 diag. and nothing came up. yet everytime i jump on the freeway and get 90 mph+ the soft code hits.

    its one big mess...

    ;(
    90' Chevy Silverado 1500
    Suspension: Belltech 2" Drop Spindles
    Paint/Body: Silver Metalic w/ Red & White pinstriping, steel cowl induction hood, custom billet grille
    Interior/Electronics: Under Construction
    Wheels/Tires: American Racing Chrome Baja 17x8 / Wrapped in TOYO Proxes ST II
    Engine/Trans/Perf: EFI 5.7 Liter 350 cid V-8 w/ 700R4 Trans.
    K&N 57 Series FIPK II CAI
    40 series Flows

    HOORAH SEABEE's!! :fighting0037:SHOOT TO KILL!!


  2. #12

    Default

    What you can do is find a smog shop that will test your exhaust before running another smog test. If you have a bad cat there's no magic additives that will change your HCs.
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  3. #13
    Sr. Engineer tigersdl65's Avatar
    Join Date
    May 2009
    Location
    Tallassee, Alabama
    Posts
    384

    Default

    Quote Originally Posted by bd1326 View Post
    you ever thought of moving out of cali? no more failed smog test
    Im in bama and of course we dont do that but mine was so bad it smelled funny.
    Schrub!:sign0011:

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