Who is correct about the O2 sensor and CKP sensor behavior?

In analyzing the operation and behavior of the O2 sensor (oxygen sensor) and CKP sensor (crankshaft position sensor), it’s essential to understand their distinct roles in an engine management system.

The O2 sensor measures the amount of oxygen in the exhaust gases, providing feedback to the engine control unit (ECU) to help adjust the air-fuel mixture for optimal combustion. This adjustment is crucial for fuel efficiency and emission control. The behavior of the O2 sensor is characterized by its response to changes in exhaust composition and temperature, which can be influenced by several factors including fuel quality, engine maintenance, and exhaust system integrity.

Conversely, the CKP sensor plays a crucial role in determining the position of the crankshaft and, indirectly, the position of the camshaft. This information is vital for the ECU to control ignition timing and fuel injection. The CKP sensor operates through detecting magnetic changes or specific markers on the crankshaft or a reluctor wheel, generating signals that the ECU interprets to determine engine timing.

In the scenario presented, if both technicians A and B have misunderstood how either of these sensors operates, their conclusions or statements regarding the behavior of the O2 sensor and CKP sensor might be flawed, leading to the