Ignition Coil Resistance (Protege)

Ignition coil is integrated into distributor. Disconnect distributor 7-pin connector. Remove distributor cap. Using an ohmmeter, measure secondary resistance between terminal "G" and coil tower. See Fig 5. If resistance is not as specified, replace distributor. See IGNITION COIL RESISTANCE table.

IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)

Application

Primary

Secondary

Miata

⁽¹⁾

8240-12,360

Millenia

2.3L

⁽²⁾

2.5L

.49-.73

⁽³⁾ 20,000-31,000

Protege

⁽¹⁾

⁽³⁾ 20,000-31,000

626

.45-.55

11,500-15,500

⁽¹⁾	Information is not available from manufacturer.

⁽²⁾	Refer to IGNITION COIL RESISTANCE (MILLENIA 2.3L) .

⁽³⁾	Remove distributor cap to measure secondary coil resistance.

Fig 1: Checking Primary Coil Winding Resistance (Miata)

Courtesy of MAZDA MOTORS CORP.

Fig 2: Checking Primary Coil Winding Resistance (Millenia 2.5L)

Courtesy of MAZDA MOTOR CORP.

Fig 3: Checking Secondary Coil Winding Resistance (Miata)

Courtesy of MAZDA MOTOR CORP.

Fig 4: Checking Secondary Coil Winding Resistance (Millenia 2.5L)

Courtesy of MAZDA MOTOR CORP.

Fig 5: Checking Secondary Coil Winding Resistance (Protege)

Courtesy of MAZDA MOTOR CORP.