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  1. #1
    Member
    Join Date
    Sep 2007
    Location
    bay area
    Age
    39
    Posts
    197

    NBM
    1999 Hardtop Z28

    SES with Ported TB Install

    wondering how many people have run into this problem. installed a ported tb and my ses light came on. codes p0171 & p0174. lean in banks 1&2.

    is this something that can be adjusted manually or do i need it tuned out?

    thanks

  2. #2
    MOTOR CITY MARO' SSTODD's Avatar
    Join Date
    Nov 2005
    Location
    LIVONIA,MICHIGAN
    Age
    58
    Posts
    786

    PEWTER
    2000 CAMARO SS #3821

    Sounds like it is leaking, make sure the rubber gasket form is ok and that all is clean and tight to the intake. And if you messed with the maf that will throw those codes also.

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