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Check Engine Light - codes P0125 & p1135

Discussion in '1st Gen. Tacomas (1995-2004)' started by kside, Mar 7, 2011.

  1. Mar 7, 2011 at 6:52 PM

    kside [OP] New Member

    Mar 7, 2011
    I have a 2001 Tacoma and the check engine light just came on. Had it hooked up and the reading came back P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control and P1135 Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1). Any advice on what those mean and how I might fix them is very much appreciated.

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