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CYL Sensor

Unplug CYL sensor connector. Measure resistance between White and Red (Orange on Prelude) terminals at sensor. Resistance should be 650-850 ohms. Measure insulation resistance between White and Red (Orange on Prelude) terminals of sensor and crank angle sensor housing. Resistance should be 100,000 ohms or more.

Fig 1: Testing CYL & TDC Sensors