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Idle issues. 2003 3.4 4x4

Discussion in '1st Gen. Tacomas (1995-2004)' started by 034door, Mar 19, 2023.

  1. Mar 19, 2023 at 9:20 PM
    #1
    034door

    034door [OP] New Member

    Joined:
    Jan 31, 2023
    Member:
    #416868
    Messages:
    1
    Gender:
    Male
    Vehicle:
    03 white 4 door
    One tons. Coilovers. 4 speed atlas.
    Good evening everyone. I’m seeking opinions on what could be going on with my Tacoma.
    About two weeks ago, I replaced my brake booster and master cylinder. Was having issues stopping one tons and 37s. I replaced the booster with the 1-ton t100 booster and went with the GM master. I figured out the issue was actually with the pedal linkage but figured might as well swap them as I had already purchased the parts. The good news is the the brakes are good to go. The bad news is the truck won’t idle and wants to throttle down and die once it goes into closed loop. Initially I thought it was a vacuum issue but I don’t think that’s the case. I have cleaned the throttle body really well. Changed the 02 sensors and pcv valve. Also cleaned the MAF sensor as well. I replaced the TPS with a factory Toyota 4-pin tps. Once the truck gets into closed loop, it idles a little better now but still sputters and eventually will die. Any additional ideas would be greatly appreciated! Thank you.
     
  2. Mar 26, 2023 at 10:45 PM
    #2
    MBC7777

    MBC7777 Well-Known Member

    Joined:
    Sep 10, 2014
    Member:
    #137988
    Messages:
    72
    Gender:
    Male
    First Name:
    Matt
    Concord NC
    Vehicle:
    2006 Double Cab Tundra 4wd
    I had a battery with a dead cell do that one time. It was a stock truck though ‍♂️
     

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