1999 Toyota Sienna Check Engine Code P0125

1999 TOYOTA SIENNA
114,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SAYCOFJ
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  • 1 POST
How do you repair code p0125 closed loop fuel control insufficent coolant temp?
Aug 12, 2009 at 8:12 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Hi there,

your thermostat may be stuck fully open, check this and if engine temp is ok, check the coolant temp sensor for range.

Mark. (mhpautos)
Aug 12, 2009 at 8:42 PM
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