I know this is something related to coolant temp.. anybody else have this show up and how can I fix it...P0128

 

thermostat is sticking....need a new one.

 

thats what i was thinking.. how much is a new one ??

 

like $15

 

ok could it also be the temp sensor??

 

temp sensor or low coolant

 

this is actually an information only code. it can indicate a stuck open t-stat, however it can also be cause be a drop in ambient temp. i used to get that code when we had a sudden overnight temp change. basicly the pcm is calibrated for roughly how long it should take to warm up based on intake air temp and maf, if it takes longer it sets the code.

the only real thing that could be wrong is a bad coolant sensor or a stuck open t-stat. if the temp reads correctly on the dash, and it does warm up to its normal point (over 180*f), then id just say clear the code and keep an eye on it.

 

It goes to normal temp and everything

 

clear the code off and see if it comes back