Throttle Body (For Sedan) -- Installation |
| 1. INSTALL THROTTLE WITH MOTOR BODY ASSEMBLY |
 |
Install a new gasket onto the intake manifold.
Install the throttle with motor body assembly using the bolt and 3 nuts.
- Torque:
- 9.0 N*m{92 kgf*cm, 80 in.*lbf}
 |
Install the water filler sub-assembly with hose using the 2 nuts.
- Torque:
- 7.5 N*m{76 kgf*cm, 66 in.*lbf}
 |
Install the wire harness with bracket using the nut.
- Torque:
- 9.0 N*m{92 kgf*cm, 80 in.*lbf}
 |
Connect the throttle with motor body assembly connector.
| 2. CONNECT WATER BY-PASS HOSE NO. 2 |
 |
Connect water by-pass hose No. 2.
| 3. CONNECT WATER BY-PASS HOSE |
 |
Connect the water by-pass hose.
| 4. INSTALL AIR CLEANER CAP SUB-ASSEMBLY WITH AIR CLEANER HOSE NO. 1 |
 |
Install air cleaner cap sub-assembly with air cleaner hose No. 1.
Tighten the hose clamp to the specified torque.
- Torque:
- 3.0 N*m{31 kgf*cm, 27 in.*lbf}
Connect the wire harness clamp and mass air flow meter connector.
 |
Connect ventilation hose No. 2.
 |
Connect the vacuum switching valve assembly connector and wire harness clamp.
 |
Connect fuel vapor feed hose No. 1 and fuel vapor feed hose No. 2 to the vacuum switching valve assembly.
| 5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL |
- Torque:
- 5.4 N*m{55 kgf*cm, 48 in.*lbf}
| 6. ADD ENGINE COOLANT |
Tighten all the plugs.
Pour engine coolant into the radiator assembly until it overflows.
- Capacity:
- M/T 4.8 liters (5.1 USqts, 4.5 lmp. qts)
- A/T 4.7 liters (5.0 USqts, 4.4 lmp. qts)
- NOTICE:
- Do not substitute water for engine coolant.
- HINT:
- Use of improper engine coolant may damage the engine coolant system.
- Use only Toyota Super Long Life Coolant or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate engine coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids).
Check the engine coolant level inside the radiator assembly by squeezing the inlet and outlet radiator hoses several times by hand. If the engine coolant level goes down, add engine coolant.
Install the radiator cap sub-assembly securely.
Slowly pour engine coolant into the radiator reservoir until it reaches the FULL line.
Bleed air from the cooling system.
Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.
- HINT:
- The thermostat open timing can be confirmed by pressing the No. 2 radiator hose by hand, and checking when when the coolant starts to flow inside the hose.
Maintain the engine speed at 2,000 to 2,500 rpm and warm up the engine until the cooling fan operates.
Press the No. 2 radiator hose and No. 3 radiator hose several times by hand to bleed air.
- NOTICE:
- When pressing the radiator houses
- Wear protective glove.
- Be careful as the radiator hoses are hot.
- Keep your hands away form the radiator fan.
Stop the engine and wait until the coolant cools down.
If the engine coolant level is below the full level, perform steps (b) through (g) again and repeat the operation until the engine coolant level stays at the full level.
Recheck the engine coolant level inside the radiator reservoir tank assembly. If it is below the full level, add engine coolant.
| 7. CHECK FOR ENGINE COOLANT LEAKAGE |
- CAUTION:
- To avoid the danger of being burned, do not remove the water filler cap sub-assembly while the engine and radiator assembly are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator assembly.
Fill the radiator assembly with engine coolant, and attach a radiator cap tester.
 |
Pump the tester to 118 kPa (1.2 kgf/cm2, 17.1 psi), and then check that the pressure does not drop.
If the pressure drops, check the hoses, radiator assembly and water pump assembly for leaks. If there are no signs or traces of external engine coolant leaks, check the heater core, cylinder block and head.
| 8. INSTALL CYLINDER HEAD COVER NO. 2 |
 |
Tighten the 2 A nuts, then the 2 B nuts.
- Torque:
- 7.0 N*m{71 kgf*cm, 62 in.*lbf}
| 9. PERFORM INITIALIZATION |
- NOTICE:
- Perform the following procedure after replacing the ECM, throttle body assembly or any throttle body components. The following procedure should also be performed if the throttle body is cleaned.
Disconnect the cable from the negative (-) battery terminal. Wait at least 60 seconds and reconnect the cable.
Turn the ignition switch to ON without operating the accelerator pedal.
- NOTICE:
- If the accelerator pedal is operated, perform the above steps again.
Connect the Techstream to the DLC3 and clear the DTCs (YARIS_NCP93 RM000000PDK0QGX.html).
Start the engine and check that the MIL is not illuminated and that the idle speed is within the specified range when the A/C is switched off after the engine is warmed up.
- Standard (for Automatic Transaxle):
Condition Engine Idle Speed A/C switched off 650 to 750 rpm
- Standard (for Manual Transaxle):
Condition Engine Idle Speed A/C switched off 550 to 650 rpm
- HINT:
- Be sure to perform this step with all accessories off.
- Make sure that the shift lever is in neutral.
Enter the following menus: Powertrain / Engine and ECT / Data List / Throttle Sensor Position. Fully depress the accelerator pedal and check that the value is 60% or more.
Perform a road test and confirm that there are no abnormalities.