Camshaft Position (CMP) Sensor: Protege
WARNING: This page is about a different car, the 1995 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.
- Remove distributor. Disconnect distributor 3-pin connector and leave 6-pin connector plugged-in. Connect analog voltmeter (or oscilloscope) negative lead to distributor ground (distributor body or Black/Pink wire terminal). With voltmeter positive lead, backprobe Violet/Red wire terminal. Turn ignition on and rotate distributor shaft by hand. Voltmeter should indicate one voltage pulse (5 volts) per revolution.
- Move positive voltmeter lead to Violet/Green wire terminal. Rotate distributor shaft. Voltmeter should indicate 4 voltage pulses (5 volts) per revolution. Replace distributor if necessary.