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.
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HOMESERVICE MANUALSMITSUBISHI2005LANCER L4-2.4L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR TEMPERATURE SENSOR ( AMBIENT / INTAKE )TESTING AND INSPECTIONINTAKE AIR TEMPERATURE SENSOR
2005 Mitsubishi Lancer L4-2.4L SOHC
Intake Air Temperature Sensor
2005 Mitsubishi Lancer L4-2.4L SOHCSECTION Intake Air Temperature Sensor
INTAKE AIR TEMPERATURE SENSOR CHECK
1. Disconnect the mass airflow sensor connectors.
2. Measure resistance between terminal No.1 and No.4.
Standard value:
13 - 17 kOhms [at -20°C (-4°F)]
5.3 - 6.7 kOhms [at 0°C (32°F)]
2.3 - 3.0 kOhms [at 20°C (68°F)]
1.0 - 1.5 kOhms [at 40°C (104°F)]
0.56 - 0.76 kOhms [at 60°C (140°F)]
0.30 - 0.45 kOhms [at 80°C (176°F)]
3. If not within specifications, replace the mass airflow sensor.
4. Measure resistance while heating the sensor using a hair dryer.
5. If resistance does not decrease as heat increases, replace the mass airflow sensor.
1. Disconnect the mass airflow sensor connectors.
2. Measure resistance between terminal No.1 and No.4.
Standard value:
13 - 17 kOhms [at -20°C (-4°F)]
5.3 - 6.7 kOhms [at 0°C (32°F)]
2.3 - 3.0 kOhms [at 20°C (68°F)]
1.0 - 1.5 kOhms [at 40°C (104°F)]
0.56 - 0.76 kOhms [at 60°C (140°F)]
0.30 - 0.45 kOhms [at 80°C (176°F)]
3. If not within specifications, replace the mass airflow sensor.
4. Measure resistance while heating the sensor using a hair dryer.
5. If resistance does not decrease as heat increases, replace the mass airflow sensor.
RENDER: 1.0x
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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.