SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2011YARIS L4-1.5L (1NZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMKNOCK SENSORSERVICE AND REPAIRREMOVAL
2011 Toyota Yaris L4-1.5L (1NZ-FE)

Removal

2011 Toyota Yaris L4-1.5L (1NZ-FE)SECTION Removal




1NZ-FE ENGINE CONTROL SYSTEM: KNOCK SENSOR: REMOVAL

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

2. DRAIN ENGINE COOLANT Service and Repair

3. REMOVE CYLINDER HEAD COVER NO. 2 Removal

4. REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH AIR CLEANER HOSE NO. 1 Removal

5. DISCONNECT WATER BY-PASS HOSE Removal

6. DISCONNECT WATER BY-PASS HOSE NO. 2 Removal

7. REMOVE THROTTLE WITH MOTOR BODY ASSEMBLY Removal

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.





(d) Disconnect the union to connector tube hose.





(e) Remove the 3 bolts and 2 nuts and remove the intake manifold.





(f) Remove the gasket from the intake manifold.

9. REMOVE KNOCK SENSOR





(a) Disconnect the knock sensor connector.

(b) Remove the nut and remove the knock sensor.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.