where is evap tank 2004 gp gt

[peter]

cant find evap tank 2004 grand prix gt .maybe vacuum leak code po171 still trying to find engine lines diagram. thank you pete

[Swiggles]

The evap is the sensor thats behind the throttle body, has a 2 wire plug and a black hose going to it.

Spray some carb or brake clean around different areas of the motor while running to see if there is any change.

[peter]

thank you . where is the tank or canster hideing

[Swiggles]

I believe that is in or by the fuel tank

[peter]

Thank you all