ALSO:
Be very CAREFUL when removing the harness off of the sensor(s) it self. The plastic has become very very brittle of the years on these car and it is nothing for it to break.
GM p/n:15320925 which is also the AC Delco p/n as well. Go ahead ask me how I know
Make sure you or a friend has a IN LB torque wrench to properly torque down the intake and I believe that right up tells you you can re-use the gaskets on the intake. :woowoo: