WARNING: This page is about a different car, the 1995 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Remove camshaft position sensor. Disconnect fuel injector connector. Disconnect ignition control module. This will prevent coil sparking.
Turn ignition on. Using a voltmeter, backprobe power wire and ground wire at ignition control module. Voltmeter should display 12 volts. If voltage is not as specified, check ignition and ground circuits. Backprobe appropriate sensor wire at camshaft position sensor. See HALL EFFECT SENSOR VOLTAGE SPECIFICATIONS table. Slowly rotate camshaft position sensor shaft one turn. Voltmeter should pulse 0-5 volts 4 times (4-cylinder) or 6 times (V6).
Backprobe appropriate wire at camshaft position sensor. See HALL EFFECT SENSOR VOLTAGE SPECIFICATIONS table. Slowly rotate distributor shaft one turn. Voltmeter should pulse 0-5 volts one time. If either sensor does not work as described, replace camshaft position sensor.

HALL EFFECT SENSOR VOLTAGE SPECIFICATIONS

Wire Color

Volts

White/Red (Power)

White (Sensor)

⁽¹⁾ 0-5

Yellow/Blue (Sensor)

⁽¹⁾ 0-5

Black/Light Green (Ground)

⁽¹⁾	Voltage should fluctuate from 0-5 volts as engine is turned slowly.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Hall Effect Sensor

Use the Manual With the Right Hardware

When to See a Mechanic

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