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

Air Intake Temp Sensor

This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors

All models. 3.4l. All models. 4.6l. Astro, Safari. 2.5l. All models. 2.5l. LeMans. 5.7l. Allante. Corvette. Without zr1. Aurora. Provides information for correct fuel/air mixture Designed to send accurate readings of the position of the throttle valve to the ECM to help provide excellent engine performance

DTS. Seville. All models. Lucerne. 4.6l. Allante. Aurora. 4.0l. Bonneville, LeSabre. 4.6l. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

ECM

8 cylinder. Seville. Dish-fin type. 4.9L. Allante. 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„¢ Coolant Temp Sensor