Are fuel injected 2.3 N/A's supposed to have a canister purge solenoid? The emissions diagram in my Hayne's manual shows one for my engine, but I don't have one. I don't see a connector for one in my wire harness either. I just have a vacuum line going from the underside of the upper intake to the charcoal canister, so it's always purging the canister when the engine is running. Is that right?