Hi all,

What exactly should I check for if I'm getting a P0455 (EVAP Control System Leak Detected) in a 97 S600? The gas cap is tight but I haven't replaced it, any thoughts? Thanks

That can be a tough code for even a seasoned technician.

There are at least 5 different components & hoses and the fuel tank itself that can cause that code...we start by using scanner to activate the system & then using a smoke machine to see if there are leaks.

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