Yaris L4-1.5L (1NZ-FE) (2007)
Knock Sensor: Service and Repair
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
2. DRAIN ENGINE COOLANT
3. REMOVE CYLINDER HEAD COVER NO. 2
4. REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH AIR CLEANER HOSE NO. 1
5. DISCONNECT WATER BY-PASS HOSE
6. DISCONNECT WATER BY-PASS HOSE NO. 2
7. REMOVE THROTTLE WITH MOTOR BODY ASSEMBLY
8. REMOVE INTAKE MANIFOLD
a. Separate the engine wire harness from the intake manifold.
b. Separate water by-pass hose No. 2.
c. Disconnect the ventilation hose.