I have a 2001 toyota echo 1.5 ,check engine litht is on I put the computer and code # XXXXX Insufficient Coolant Temperature for Closed loop fuel control how cant I fix this problem ,what I newed change
Year: 2001Make: ToyotaModel: echoEngine: 1.5
Chnage coollant temperature sensor
the most common probelm when this code appears is a bad thermostat .
change the thermostat and gasket and refill the cooling system and this should take care of the probelm.
if you have further questions on this let me know
toyota certified master diagnostic technician ase and hybrid certified