P0128 2004 Nissan Sentra -

Question

Po128  code came up when I went to auto zone,do I need a new thermometer,or my sensor could be gone....please help.

Answer 1

Hi there,

The best place to start is with a new thermostat. If the car uses coolant however, be aware these do tend to have head gasket problems. Basically the code is telling us that the fans are running to long and can't cool the engine down.