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  1. #1
    Sr. Apprentice bigbrett's Avatar
    Join Date
    Apr 2007
    Location
    montreal quebec
    Posts
    52

    Default changed the 02 sensor

    2003 tahoe 5.3
    scanner showed 02 sensor in right side exhaust
    changed it still getting code
    preheat something or other in that sensor

    must be a loose connection

    anybody have the wiring diagram or have had similar
    2003 tahoe
    1994 roadmaster LT1(gone to roadie heaven but the 350 is in the garage:happy:)
    1980 trans am 301 turbo
    1977 scottsdale 454

  2. #2

    Default

    I've used the wiring diagrams in Chiltons and/or Haynes, and found them adequate for O2 sensor circuitry.

    What specific code are you getting?
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

  3. #3
    Sr. Apprentice bigbrett's Avatar
    Join Date
    Apr 2007
    Location
    montreal quebec
    Posts
    52

    Angry

    I knew I should have written it down
    2003 tahoe
    1994 roadmaster LT1(gone to roadie heaven but the 350 is in the garage:happy:)
    1980 trans am 301 turbo
    1977 scottsdale 454

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