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Where is coolant temperature sensor located on 99 Toyota corolla?

99 Corolla (1.8L 4-cylinder engine):

- The ECT sensor is located in the engine block, just behind the intake manifold.

- The ECT sensor is bolted into the water jacket of the engine, and is in contact with the engine coolant.

- The sensor is usually connected to a wiring harness, which is connected to the engine computer.