Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Inspection [10/2022 - ]: Procedure
- INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
- 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).
*a Intake Air Temperature Sensor (Thermistor) - Clean the intake air temperature sensor (thermistor).NOTE:
- 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.
*a Air Blow Gun *b 10 mm (0.394 in.) *c Intake Air Temperature Sensor (Thermistor) - 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).
*a Air Blow Duration *b 3 to 6 Seconds *c 1 Second *d Air Blowing *e Air Stopped 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.
- Check the intake air temperature sensor (thermistor) resistance.
*a Component without harness connected
(Mass Air Flow Meter Sub-assembly)
- 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.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.