Hey all, I have a 2003 zts with the 2.3 in it. I recently got a check engine light and went to sears to get it checked out and they told me the code was p0117. I checked my cylinder head temp sensor and looks like the previous owner used jbweld on it where the plastic meets the brass or whatever it is. I put it back in and ordered the part. between the time that i ordered it the car started bucking hard at idle, so i figured it was due to the temp sensor. I replaced the sensor, reset the ecu. I go to turn the car back on and its still bucking. I checked the dash dtc and it read 9813 which is the battery reading lower than 10v. I replaced the battery and its still bucking, equivalent to the bucking a manual trans gives you when you dont give it enough throttle. After replacing the battery it still gives me the 9813. I'm at a loss and im hoping somebody might be able to help. thanks guys.