The 2 steel lines next to the ps pump are for the canister. The canister is in the back on a 98 so just connect them together. The 2 hoses go to the solenoids on the fender. Use the original ECU from the 98. It will run fine. Your IAC valve might be stuck if the used engine was sitting around for a while. Spray some carb cleaner in it, take the top apart off and work it back and forth.