Hello,
I replaced a thermostat, and also the VIM(S), which required my keys to be re-programmed--for about $1800 USA dollars now.....and the P0128 still comes on the check engine light.....
Mechanic said I need a different thermostat with a higher temperature threshold---why didn't they order that thermostat sooner?
Mechanic said something about a temperature sensor might need to be ordered?
P0 128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature).
What needs to be done?
Thanks for your replies.....