RM38T0EC _51 Engine / Hybrid System _144956 M20F-FXS, M20G-FXS ENGINE CONTROL _0604221 MASS AIR FLOW METER G

M20F-FXS, M20G-FXS ENGINE CONTROL  MASS AIR FLOW METER  INSPECTION  


PROCEDURE

Hide 22204 1.INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

a.
A433349C01
2,1.156 2.396,1 true 2.469,0.885 2.781,1.042 0.313,0.156 10 false *a
*a Intake Air Temperature Sensor (Thermistor)


Perform a visual check for any foreign matter on the intake air temperature sensor (thermistor) of the mass air flow meter sub-assembly shown in the illustration.

OK:

There is no foreign matter.


If the result is not as specified, clean the intake air temperature sensor (thermistor).


b.
A487340C01
1.375,2.51 1.792,2.51 true 1.188,0.917 1.458,0.917 true 1.198,2.438 1.51,2.635 0.313,0.198 10 false *a 2.292,4.125 2.469,4.302 0.177,0.177 10 true *b 1.49,0.823 1.74,1.01 0.25,0.188 10 false *c
*a Air Blow Gun
*b 10 mm (0.394 in.)
*c Intake Air Temperature Sensor (Thermistor)


Clean the intake air temperature sensor (thermistor).

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 intake air temperature sensor (thermistor) area.



i.
A398469C01
0.125,0.125 0.365,0.302 0.24,0.177 10 false *a 1.313,0.24 1.552,0.406 0.24,0.167 10 false *b 1.563,0.573 1.792,0.74 0.229,0.167 10 false *c 0.688,0.906 0.927,1.083 0.24,0.177 10 false *d 0.677,1.708 0.917,1.885 0.24,0.177 10 false *e
*a Air Blow Duration
*b 3 to 6 Seconds
*c 1 Second
*d Air Blowing
*e Air Stopped


Using an air blow gun, clean the intake air temperature sensor (thermistor) area of the mass air flow meter sub-assembly by applying approximately 10 intermittent bursts of air to the intake air temperature sensor (thermistor) area at a pressure of approximately 392 to 981 kPa (4.0 to 10.0 kgf/cm2, 57 to 142 psi).

HINT:

After performing cleaning, read the value of Data List item "Mass Air Flow Sensor" using the GTS and if the value is not as specified, replace the mass air flow meter sub-assembly.