My check engine light is on and the code i get is po128 can anyone tell me what it is
This code sets when the engine temp doesnt get to operating temp in a desired time. sounds like a thermostat problem. also there are some aftermarket HP parts that will set this code
This is a coolant below threshhold code meaning engine is running too cool. change your thermostat and will fix problem. if you cant clear code after a few drive cycles the computer will cut light off once it sees problem is corrected
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