2006 Ford Fusion Q&A
2006 Ford Fusion Question: Can OBD II Code P0128 affect my AC?
128 is when the motor does not reach normal operating temp. usually from a bad thermostat. the hot air is probably a freon issue and needs to be checked. Roy - mastertech6371
p0128-coolant temp insufficient for closed loop operation.you need a thermostat for this concern. I just repaired 3 fusions in a row for this and my a/c tech repairs/replaces the evaporator temp sensor,which requires the dash to be removed for this. not for sure your car will need this for the a/c concern,just see it a lot! - bmdouble