Checked my alldata, p1162 is slow responce for o2 metering, sensor 1
which you knew
it is your o2 sensor
Pre cat
just replace it, but use a good quality replacement such as bosch or go oem.
DO NOT BUY ONE YOU HAVE TO WIRE TOGETHER,they may be cheaper, but they are a pain in the ass and if you don't do it right you can wreck the sensor the first time you run the car.