1999 Toyota Sienna scan code po125

1999 TOYOTA SIENNA
100,000 MILES • 6 CYL • FWD • AUTOMATIC
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REFLECTIONCODEUSE
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P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control..
how to check or where to start to check for solution?
Aug 25, 2010 at 9:34 AM
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BLUELIGHTNIN6
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did you run out of fuel lately? that will cause code to appear. also faulty oxygen sensor #1 will cause it as well as if spark plugs are not getting healthly spark.
Aug 25, 2010 at 8:38 PM