Vapor Canister

3.6L, with pzev, gas. 2.5L, with pzev.

Pressure Sensor

Help measure pressure changes within fuel tank Help alert engine management computer if a leak occurs in fuel system

M.A.P Sensor

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

Purge Valve

Secondary Air Injection Pump Check Valve, Left

XTS. Left. Impala. 3.6l. Helps prevent exhaust from entering air pump This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Ft Oxygen Sensor, Left

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 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