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Starving engine and inconsistent rough idle

Discussion in '1st Gen 4Runners (1984-1989)' started by schmels, Nov 23, 2022.

  1. Nov 23, 2022 at 7:37 AM
    #1
    schmels

    schmels [OP] New Member

    Joined:
    Sep 23, 2022
    Member:
    #28792
    Messages:
    7
    Gender:
    Male
    Vehicle:
    1985 4runner
    Hey all, so recently my dad and I replaced my TPS on my 85’ 4runner and the results have been mixed. For starters we first tried to skip the multimeter phase by just adjusting it while it’s all connected and running. Didn’t work, so we pull it and do it the right way. Okay so now it fires up but doesn’t run. Two days later all of a sudden it runs but no throttle response. On open throttle it just revs up in slow intervals then eventually dies. What could this possibly be? We have plugged another ecu in and checked all fuses.
     
  2. Nov 23, 2022 at 11:11 AM
    #2
    wildgoose

    wildgoose New Member

    Joined:
    Oct 26, 2022
    Member:
    #29269
    Messages:
    9
    Gender:
    Male
    Vehicle:
    2020 4Runner TRD Offroad
    These have an airflow meter and your description sounds allot like a failing air flow meter.

    Here's a print out from alldata with pinouts and ohm readings, good luck!
     

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