Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000012V7G
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 -           ]
Title: A25A-FKS (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION; 2018 - 2024 MY Camry [03/2017 -        ]

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.

Click here 2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2020 MY Camry [09/2019 - 03/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2020 - 2024 MY Camry [03/2020 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

(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:

  1. Turn off all electrical loads, such as the air conditioning, etc.
  2. Check that the coolant temperature is 75°C (167°F) or more.
  3. 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) Enter the following menus: Powertrain / Engine / Data List / Mass Air Flow Sensor.

Powertrain > Engine > Data List

Tester Display

Mass Air Flow Sensor

(6) According to the display on the Techstream, read the Data List when the engine is running.

Standard Condition:

Techstream Display

Condition

Specified Condition

Mass Air Flow Sensor

Idling (engine warmed up)

1.2 to 3.2 gm/sec

3000 rpm (with out load)

7.5 to 12.5 gm/sec

If the result is not as specified, clean the mass air flow meter sub-assembly.

If the result is within the specified range, check the intake air temperature sensor (thermistor) resistance.

Click here 2018 - 2024 MY Camry [03/2017 -        ]; A25A-FKS (ENGINE CONTROL): MASS AIR FLOW METER: INSPECTION

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.

*a

Air Blow Duration

*b

3 to 6 Seconds

*c

1 Second

*d

Air Blowing

*e

Air Stopped

(c) Install the air cleaner cap sub-assembly.

3. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

Click here 2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2020 MY Camry [09/2019 - 03/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION 2020 - 2024 MY Camry [03/2020 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION