What Reactions Will Occur When Car Sensors Fail?

1 Answers
MariaLynn
07/28/25 6:55pm
Here are the situations that occur when different car sensors fail: 1. Oxygen sensor: Located on the exhaust pipe, if the oxygen sensor fails, the ECU cannot determine whether the injected gasoline amount is correct, leading to a mixture concentration that is either too rich or too lean, incomplete combustion, reduced engine power, and increased emissions. 2. Wheel speed sensor: Usually installed on the hub of each wheel. Once it fails, the ABS will become ineffective. 3. Air flow meter: Generally installed between the air filter and the throttle body. If it fails, the engine speed cannot increase. 4. Crankshaft position sensor and camshaft position sensor: Usually installed behind the crankshaft pulley or near the large flywheel and in front of or behind the camshaft, respectively. These two sensors complement each other and must work simultaneously to ensure the normal operation of the engine. If one fails, the engine will not start. 5. Throttle pedal position sensor: Typically integrated with the throttle pedal. If it fails, the engine can only operate at idle speed.
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