| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EV9P |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 08/2020] |
| Title: A25A-FKS (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION; 2019 - 2020 MY RAV4 [11/2018 - 08/2020] | ||
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
-
w/ Canister Pump Module:
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![2019 MY RAV4 [11/2018 - 10/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/ Canister Pump Module): INITIALIZATION](/t3Portal/stylegraphics/info.gif)
-
w/o Canister Pump Module:
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(a) Read the value of Data List item "Mass Air Flow Sensor" using the Techstream.
NOTICE:
Perform the inspection of the mass air flow meter sub-assembly while it is installed to the air cleaner cap sub-assembly (installed to the vehicle).
(1) Check and ensure the following conditions:
- Turn off all electrical loads, such as the air conditioning, etc.
- Check that the coolant temperature is 75°C (167°F) or more.
- Put the shift lever in the N position.
(2) Connect the Techstream to the DLC3.
(3) Start the engine.
(4) Turn the Techstream on.
(5) According to the display on the Techstream, read the Data List when the engine is running.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Mass Air Flow Sensor |
Standard Condition:
|
Techstream Display |
Condition |
Specified Condition |
|---|---|---|
|
Mass Air Flow Sensor |
Idling (engine warmed up) |
1.2 to 3.2 gm/sec |
|
2000 rpm (without load) |
4.5 to 8.5 gm/sec |
|
|
3000 rpm (without load) |
7.5 to 12.5 gm/sec |
If the result is not as specified, clean the mass air flow meter sub-assembly.
After cleaning (air blowing) the mass air flow meter sub-assembly, perform an on-vehicle inspection of the mass air flow meter sub-assembly again and replace the mass air flow meter sub-assembly if the result is not as specified.
If the result is within the specified range, check the intake air temperature sensor (thermistor) resistance.
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2. CLEAN MASS AIR FLOW METER SUB-ASSEMBLY
NOTICE:
If the mass air flow meter sub-assembly is removed and installed 10 times or more, the thread of the hole of the mass air flow meter sub-assembly may be damaged. Therefore, do not loosen the screws of the mass air flow meter sub-assembly.
(a) Remove the air cleaner cap sub-assembly.
(b) Clean the mass air flow meter sub-assembly.
NOTICE:
- Do not contact the mass air flow meter sub-assembly with the nozzle of the air blow gun.
- Do not insert the nozzle of the air blow gun into the airflow hole.
|
*1 |
Mass Air Flow Meter Sub-assembly |
|
*a |
Air Blow Gun |
|
*b |
10 mm (0.394 in.) |
|
*c |
Airflow Hole |
|
(1) Using an air blow gun, clean the hole of the mass air flow meter sub-assembly by applying approximately 10 intermittent bursts of air to the airflow hole at a pressure of approximately 392 to 981 kPa (4.0 to 10.0 kgf/cm2, 57 to 142 psi). HINT: Apply 5 intermittent bursts of air to the airflow hole at 2 locations. |
|
(c) Install the air cleaner cap sub-assembly.
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