2002 tahoe idle problems

Discussion in 'Technical Discussions' started by Freeonz, Jan 28, 2020.

  1. Freeonz

    Freeonz New Member

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    Howdy I am new here i joined because I have the a 2002 Tahoe. I am also a member over at gmt400 (I am r422b)

    When it is cold my flex fuel 5.3 does not idle smoothly it stutters and the rpm bounces.
    Also I have codes
    P0174
    P0171
    P0440
    P0449
     
  2. Freeonz

    Freeonz New Member

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    I know that the 440 and 449 codes are evap related. I have replaced the evap vent solenoid with the only effect being that the 174 and 171 codes set
     
  3. Freeonz

    Freeonz New Member

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    Oh and I forgot to mention It has low mileage only 261000.