My 2005 Vios, P0125 error code & how i solved the problem
Posted in Daily Distortion on November 12th, 2009 by kimi – Be the first to commentI copied & published my article previously posted here
Hi All,
Let me share my experience in solving the P0125 Error Code
What is the problem
P0125 error code – Insufficient Coolant Temperature For Closed Loop Fuel
Please read the problems detailed here > http://bit.ly/1CCAgM
What have i replaced (which did not solved the problem)
After numerous visits to the mechanic (only one 
), he advised to changed below items:
1) ECT (Engine Coolant Temperature) Sensor
2) Thermostat
3) Flushing the Coolant
I even let my engine running without Thermostat (which i hesitated to do) after been advised by the mechanic. Yet, the problem still arise.
