under vechile near rear of engine going in from engine side toward transmission there is a 2 wire sensor with 1 bolt holding it in.
It detects spark knock (ping) then sends a signal to the ECM to retard timing.
The knock sensor is located under the Intake Manifold and there is a knock sensor 1/ knock sensor 2 on this model,the 2 is the one in the rear.
One Sensor.... Removal Procedure 1. Remove the intake manifold. 2. Disconnect the knock sensor electrical connector. 3. Remove the knock sensor. Installation Procedure 1. Install the knock sensor. Tighten the knock sensor to 19 Nm (14 lb ft). 2. Connect the knock sensor electrical connector. 3. Reinstall the intake manifold.
Use SAE 10w-30 Synthetic oil such as Mobil 1.
1-5-4-2-6-3-7-8
where is the knock sensor circuit #1 location on a 1999 trans am ls1, I have looked everywhere. thanks
Trouble code P0325 means: Knock Sensor 1 Circuit (Bank 1) Replace the Knock Sensor
The knock 1 sensor on a Vortec 4.8 is located on the top of the engine. You will have to remove the intake to gain access to replace it.
Trouble code P0325 means: Knock Sensor 1 Circuit (Bank 1) Replace the Knock Sensor
The circuit 1 knock sensor would be located on the lower right side of the engine block (passenger side). You will need to drain the coolant from the radiator and be prepared for the passenger side of the block to drain coolant when the knock sensor is removed. After you disconnect the electrical connection to the knock sensor, the knock sensor simply unthreads from the block counterclockwise. Apply a thread sealant to the threads of the new sensor and install, no need to over tighten, this is a tapered pipe thread.
Trouble code P0325 means: Knock Sensor 1 Circuit (Bank 1) Trouble code P0330 means: Knock Sensor 2 Circuit (Bank 2) Need to replace Knock sensor