Mercury 1L2Z-6B288-AA Sensor Assembly

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In troubleshooting the Camshaft Position (CMP) sensor one must perform extensive tests to identify the cause of driveability issues. As part of synchronizing fuel injector sequencing, the CMP sensor is responsible for sending a voltage signal pulse to the PCM that indicates approaching Top Dead Center (TDC) of number 1 piston. The tests include voltage drop between the sensor connector and ground, readings greater than 10 volts, and pulsating DC-voltage during cranking. Replacing it entails disconnecting, removing, and installing a new one in case faults are found. For 1995 or older models, there is a step-by-step procedure on how to time your synchronizer when re-installing it. On the other hand, for vehicles manufactured from 1996 onwards, there is a similar protocol used in changing them with emphasis on using an alignment tool while refitting the drive assembly to avoid tampering with fuel system timing. After disconnecting the electrical connector, removing the retaining bolt, and following the reversal of removal steps reinstall CMP sensor for 4.0L SOHC V6 engine.

Camshaft Position (CMP) sensor replacement involves disconnecting the battery, detaching the electrical connector, removing the sensor, and aligning the new one correctly.