| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000025Y1B |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - ] |
| Title: G16E-GTS (ENGINE CONTROL): VACUUM SENSOR: ON-VEHICLE INSPECTION; 2023 - 2025 MY GR Corolla [09/2022 - ] | ||
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT E.F.I. VACUUM SENSOR ASSEMBLY (MANIFOLD ABSOLUTE PRESSURE SENSOR)
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Turbocharger/Supercharger Inlet Pressure Bank1
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Turbocharger/Supercharger Inlet Pressure Bank1 |
(e) According to the display on the Techstream read the Data List.
OK:
The value is approximately equal to atmospheric pressure.
HINT:
- Standard atmospheric pressure is approximately 101 kPa (abs) (15 psi (abs)).
- For every 100 m (328 ft) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.15 psi). This varies by weather.
(f) Using a vacuum pump, set the E.F.I. vacuum sensor assembly (manifold absolute pressure sensor).
(g) Using a vacuum pump, read the value when pressure is applied and when pressure is decreased.
OK:
The pressure values when applying pressure or decreasing pressure using the vacuum pump and the Data List values are nearly the same.
NOTICE:
- Do not apply a pressure of 50 kPa (0.5 kgf/cm2, 7.3 psi) or more to the E.F.I. vacuum sensor assembly (manifold absolute pressure sensor).
- Do not apply a vacuum of 50 kPa (375 mmHg, 14.8 in.Hg) or more to the E.F.I. vacuum sensor assembly (manifold absolute pressure sensor).
HINT:
The pressure value displayed in the Data List is the pressure value indicated on the vacuum pump with the air pressure value added.
Example:
|
Vacuum Pump Pressure Value |
Air Pressure Value |
Equation |
Data List Value |
|---|---|---|---|
|
When vacuum is applied at 30 kPa (225 mmHg, 8.86 in.Hg) |
100 kPa (1.0 kgf/cm2, 15 psi) |
-30 + 100 = 70 |
70 kPa (0.7 kgf/cm2, 10.2 psi) |
|
When pressure is applied at 20 kPa (0.2 kgf/cm2, 3 psi) |
20 + 100 = 120 |
120 kPa (1.2 kgf/cm2, 17 psi) |
2. INSPECT VACUUM SENSOR ASSEMBLY
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / PCV 1 Pressure
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
PCV 1 Pressure |
(e) According to the display on the Techstream read the Data List.
OK:
The value is approximately equal to atmospheric pressure.
HINT:
- Standard atmospheric pressure is approximately 101 kPa (abs) (15 psi (abs)).
- For every 100 m (328 ft) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.15 psi). This varies by weather.
(f) Using a vacuum pump, set the vacuum sensor assembly.
(g) Using a vacuum pump, read the value when pressure is applied and when pressure is decreased.
OK:
The pressure values when applying pressure or decreasing pressure using the vacuum pump and the Data List values are nearly the same.
NOTICE:
- Do not apply a pressure of 50 kPa (0.5 kgf/cm2, 7.3 psi) or more to the vacuum sensor assembly.
- Do not apply a vacuum of 50 kPa (375 mmHg, 14.8 in.Hg) or more to the vacuum sensor assembly.
HINT:
The pressure value displayed in the Data List is the pressure value indicated on the vacuum pump with the air pressure value added.
Example:
|
Vacuum Pump Pressure Value |
Air Pressure Value |
Equation |
Data List Value |
|---|---|---|---|
|
When vacuum is applied at 30 kPa (225 mmHg, 8.86 in.Hg) |
100 kPa (1.0 kgf/cm2, 15 psi) |
-30 + 100 = 70 |
70 kPa (0.7 kgf/cm2, 10.2 psi) |
|
When pressure is applied at 20 kPa (0.2 kgf/cm2, 3 psi) |
20 + 100 = 120 |
120 kPa (1.2 kgf/cm2, 17 psi) |
|
|