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Spark Check

WARNING: This page is about a different car, the 2000 Mazda Protege, 2000 Mazda Millenia, 2000 Mazda MX-5 Miata, 2000 Mazda MPV, and 2000 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.

Remove spark plug. Connect spark plug to high-tension lead and hold about 1/4" from ground. Crank engine and verify a strong Blue spark is discharged. If spark is not present, measure spark plug wire resistance on suspect wire. Resistance should be less than 16,000 ohms per 3.28 feet. Replace spark plug wire and spark plug as necessary.