Guys, Your knock sensor problem will return. Changing the T-stat won't change the conditions of a knock sensor.
If you are running premium gas of at least 91 octane you are doing all you can do. You have got to change the sensor. No other sensor or condition will mimic a knock sensor code and trip the sensor. Just change the sensor. Mine's going in next week. It's easy to tell if you have a bad sensor.
1. if you have a vacuum/boost gauge.It will show a 1-2 lb boost when the sensor is thrown.
2. if you have a scan gauge. It will show p0328 code.
3. sit at a stop light, turn on your A/C and then try to take off at a high rate of speed. it won't happen. It will be like dragging a 1000lb anchor.