Knock Sensor

All models. 6 cyl. All models. 4.6l. Allante. 2.3l. Sohc. Manual trans. 3.1L. Aurora. Sends signals to the engine control module (ECM) to adjust timing Helps prevent damage to the engine caused by pre-ignition

Manifold Pressure Sensor

This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors

Oxygen Sensor

Detects oxygen content in the exhaust gases to help optimize emissions This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Sfi. All models. 3.1l. All models. 3.3l. All models. 3.8l. With supercharger. Riviera. Electronically informs the ECM of the throttle valve angle Used to regulate the fuel and ignition system

ECM

All models. 3.1l. 6 cylinder. This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Dictates the operation of your vehicle's vital systems, which is critical to the performance of your vehicle

ACDelcoâ„¢ Engine Coolant Temperature Sensor