Tag: engine misfire causes

What causes engine misfires? Learn the ignition, fuel, air, mechanical, and sensor faults behind rough running, plus smart checks before you buy parts.

Learn how to pick spark plugs for stock, tuned, and boosted engines. Get the right heat range, gap, and material for power and reliability.

Learn the most common bad ignition coil symptoms, what causes them, how to test for trouble, and when it's time to replace the coil.