Toyota Corolla Quiz
Emission Control System

Exhaust Gas Recirculation (EGR) Temperature Sensor

In this manual: Emission Control System
Owner's Manual — 7Controls and Instruments — 49Engine Starting and Vehicle Operation — 5Actions if the Engine Does Not Start — 18Maintenance — 30Gasoline Engines - Repair Procedures Without Engine Removal from Vehicle — 17Gasoline Engines - Removal and Overhaul — 21Diesel Engine — 26Engine Electrical Equipment — 13Cooling and Heating Systems — 17Fuel and Exhaust Systems — 14Emission Control System — 19Manual transmission — 6Automatic transmission — 9Clutch and Axle Shafts — 11Brake System — 20Suspension and Steering — 24Body — 29Electrical System — 24Wiring Diagrams — 24
~1min read

The EGR temperature sensor is installed next to the EGR valve. The sensor monitors the change in exhaust gas temperature as the gas passes through the EGR valve.

Temperature information is sent to the control module, which precisely regulates the on/off timing of the valve to improve exhaust emission control efficiency. If the EGR temperature sensor malfunctions, code 71 is stored in memory.

Inspection

PROCEDURE

1. Отсоедините от разъем проводки.

1. Disconnect the harness connector.
2. Measure the sensor resistance at different temperatures. Refer to subsection 6.1 for the resistance specifications at various temperatures.

Replacement

PROCEDURE
1. Disconnect the harness connector and unscrew the sensor from the intake manifold using a open-end wrench.
2. Install in the reverse order of removal.

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