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4.0 V6 idling high and funny...

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Erik37, Oct 9, 2012.

  1. Oct 10, 2012 at 7:13 AM
    #21
    Lurkin

    Lurkin Well-Known Member

    Joined:
    May 21, 2009
    Member:
    #17497
    Messages:
    22,374
    First Name:
    Rod
    Pearland, TX
    Vehicle:
    09 PreRunner SR5 DC
    His description still doesn't match that behavior very well. Even the manual doesn't hold an 1800 rpm idle after its warmed up.
     
  2. Oct 10, 2012 at 7:42 AM
    #22
    badger

    badger Well-Known Member

    Joined:
    Jan 6, 2012
    Member:
    #70102
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    Male
    Vehicle:
    07 SR5
    I have a manual, and mine doesn't do that. The behavior he is describing sounds like mine after the battery has been disconnected for a period of time. I know Iroh mentioned this earlier, but I'm wondering if the ECU is somehow dumping it's memory. I recently did a TB clean with the battery disconnected and it took 2 or 3 days for the truck to return to a normal idle pattern. For some strange reason, the AC quite working too and I think it was 4 days later it resumed to normal. That's how it is with computer controls. Hopefully the dealer will sort it out, but probably they will just start replacing shit till it clears up.
     
  3. Oct 10, 2012 at 9:53 PM
    #23
    watchdog

    watchdog Well-Known Member

    Joined:
    Mar 9, 2012
    Member:
    #74590
    Messages:
    160
    Gender:
    Male
    First Name:
    jim
    nanuet n.y.
    Vehicle:
    09 tacoma
    Rims and tires , exhaust , stereo , Bhlm ,Changed carpet to black from grey. toytec ultimate lift kit. Allpro front bumper and light bar. In process of blacking out interior. Otrattw switches, black vinyl armrest mod, clazzio leather seat covers with heaters, flowmaster dual exhaust, hornblasters train horns,
    Turn blower motor off and see if idle changes. My 09 idle goes up and down when blower motor is on. Even on low speed.
     
  4. Oct 10, 2012 at 10:11 PM
    #24
    BlueT

    BlueT Well-Known Member

    Joined:
    Mar 30, 2009
    Member:
    #15341
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    Male
    NorthEast
    Vehicle:
    07 Dbl Cab LB with LSD
    I moded 1999 Taco so much it had turned to Land Cruiser
    Idle rpms are adjusted by reading from ect sensor. Your truck seems to think its colder then it is. This is usually due to bad connection. Dealer should be able to sort it out
     

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