Jeep 56027012 Sensor-Temperature Gauge

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Information sensors provide data on engine conditions, aiding in fuel economy and emission reduction. The oxygen sensor in the exhaust manifold measures oxygen content in the exhaust, adjusting the fuel/air mixture. The knock sensor detects engine detonation, retarding ignition timing. The coolant temperature sensor monitors temperature for fuel/air mixture adjustments. The manifold absolute pressure sensor reads pressure changes to vary the air/fuel mixture. The manifold air temperature sensor measures air temperature for fuel/air adjustments. The crankshaft position sensor detects engine speed for ignition timing and fuel control. The vehicle speed sensor determines vehicle speed.

Failure of the light to go out when the engine starts may be caused by a grounded wire, defective sending unit, or faulty ignition switch.

The oxygen sensor is responsible for monitoring the oxygen content in the exhaust gas, which informs the ECM's fuel mixture control. It is tested by checking for voltage fluctuations at normal operating temperature. Lack of voltage variation may indicate issues with the sensor or the fuel system and can lead to Code 13 or 44.

Some vehicles may have multiple sending units, but only one is used for the indicator system.

Hi, The connector for #56027012 is sold with the sensor.