Change Nozzle Heater and make some cleaning

Last Thursday after i went back to home . i heard a whistle coming under hood. i hoped the hood and i found steam coming from the back side of motor. i went to the workshop the next day and start to disassemble the manifold and the rest of wires and hoses. and i found as shown in photos the nozzle heater hose had a very small cut. we change it and i take the chance to clean the throttle body and change the V belt.