P0128 2006 Nissan Sentra -

Question

I replaced the thermostat in my 2006 nissan sentra 1.8 special edition. and the service engine soon light is still on.. And its still throwing the P-0128 code. would the only thing be the engine coolant temp sensor? Its not leaking or anything so what else can i do.

Answer 1

did you run the heater for the air in the cooling system to bleed out? if there is no air in the system the coolant temperature sensor might be bad