There is no test procedure, since there is no way to duplicate engine detonation off the engine.
No, only one thermostat. It does have two temperature sensors though.
P0120 Throttle Position Sensor P0325 Knock Sensor This is codes that are telling you that the TPS sensor and the Knock sensors are faulty.Replace them.
where is a knock sensor located on a 96 Pontiac Bonneville
No.No.
The timing on the 96 SS cannot be adjusted by the owner. Timing is a function of the PCM and inputs from the optispark and crank position sensor. The timing is continually monitored and adjusted based on driving conditions and whether or not the "Knock sensors" are reading a knock condition at which time the PCM will retard the timing to prevent engine damage. This can be altered somewhat by changing the sensitivity od the sensors by modifing their circuits ot by substituting a LS4 knock sensor.
Motorcraft MERCON ATF
Your engine is fuel injected , so there is no carburetor
TWO.
Hey Jill=They have to be removed with a scanner after '96. Auto zone can do this free. GoodluckJoe Just had this problem today, Not sure if it will always work, but my 97 Villager had a knock sensor code and a TPS code. I disconected the battery for about 20 min. and then reconected it. I drove the vehicle for about 30 miles and then took it in for an emission test. Passed with flying colors and the OBD monitors tested fine. Again it may not work for you but it worked for me. A mechanic friend told me to do that.
It has 2 of them.
Four
Between air filter box and throttle body.