Q: Service engine soon...p1676 code on 1998 Oldsmobile Intrigue

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
I have replaced the canister purge solenoid,and the evap canister...still getting the p1676 code.
Could it be a bad computer since the cruise control doesn't work either ??
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I have replaced the wiring to the ECM...and replaced both solenoids...still getting p1676,and now p1665...any other ideas ??