Dtc P0128 code info
Last weekend I changed out my thermostat from the stock to my 180 drilled. Last year I used this t'stat without problems but changed it out for the winter (I live in the far north). About 3 days later my ses light came on, p0128 thermostat malfunction, I reset the code and it never came back. I have been wondering why the code was set so soon after the swap?
The new pcm I have comming from intense will take care of this but why no problems last year and so soon this?
I had the cooling system flushed last fall and the coolant level is good.
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