yea its your canister. its breaking up inside. its filled with charcoal to help emissions. change it out with a new one the canister that is and then the line that goes to the evap switch up front disconnect it and get no more than 30 psi and blow it threw the line to get all that crap out.
97 camaro z28/SS! white on white with leather 30th ann seats and 98-02 ss spoiler, 10 spoke rims,cai, flowmasters with chrome tips!! waiting to get houndstooth seats and the ss hood the owner of the car before me sold as well as the lt4 that came with the car he sold too!