Engine not reaching operating temperature.
Trouble code P0128 means:Coolant thermostat (coolant temperature below threshold regulatin temperature)
Trouble code P0128 means: ECT Sensor Below Thermostat Regulating Temperature
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
code 26 buick 1990 lasabre limited
LOGY
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
Go to a locksmith they will code your key for $30.00.
Engine coolant Sensor is bad. I have the same error on my 2005.
Coolant not reaching temp required. Usually it's sign of bad thermostat.
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
Trouble code P0128 means: ECT Sensor Below Thermostat Regulating Temperature
Any auto body shop should be able to get you the proper paint code match for your auto.