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International Automotive Technicians Network
Re: 97 Olds Silhouette evap code Arrrrrgh!
Posted to Technical Discussion Forum on 11/29/2006

[...trimmed text...]

Looking in my Jendham Tech Handbook, the description is:

EVAP Control System Flow During Non-Purge All conditions for DTC P0440, P0442 and P0446 met and passed, engine speed 650-5000 rpm, then the P... Login to read more.