Prius L4-1.5L (1NZ-FXE) (Hybrid) (2003)
E. Place protective tape over the air cleaner assembly's opening to protect the MAF sensor from foreign objects.
2. Clean carbon from the throttle body assembly.
A. Using your hand rotate the link and completely open the throttle valve.
B. While holding the throttle valve open clean carbon deposits on the throttle valve and bore using a towel covered in Throttle Plate Cleaner.