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 MANUALSLEXUS1997ES 300 V6-3.0L (1MZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSEXHAUST GAS RECIRCULATIONEGR TEMPERATURE SENSORTESTING AND INSPECTION
1997 Lexus ES 300 V6-3.0L (1MZ-FE)
EGR Temperature Sensor: Testing and Inspection
1997 Lexus ES 300 V6-3.0L (1MZ-FE)SECTION Testing and Inspection
EGR GAS TEMPERATURE SENSOR INSPECTION
1. Remove throttle body.
2. Remove EGR gas temperature sensor.
3. Inspect EGR gas temperature sensor.
Using an ohmmeter, measure the resistance between the terminals.
Resistance:
64 - 97 K ohms at 50°C(122°F)
11 - 16 K ohms at 100°C(2i2°F)
2 - 4 K ohms at 150°C(302°F)
If the resistance is not as specified, replace the sensor.
4. Reinstall EGR gas temperature sensor.
5. Reinstall throttle body.
RENDER: 1.0x
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.