Toyota 90919-12877 Cord, Spark Plug RESISTIVE

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In the event of an accidental mix-up of the ignition wires, consult the firing order diagrams for the proper sequence. The spark plug wires should be checked at recommended intervals and whenever new spark plugs are installed. Begin by visually checking the wires while the engine is running in a darkened garage with ventilation. Look for arcing or sparks at damaged areas. Disconnect the negative battery cable and inspect each wire one at a time to prevent mixing up the order. Disconnect the wire from the spark plug using a removal tool or by grabbing the plastic boot. Inspect for corrosion and ensure a tight fit on the plug end. Wipe the wire clean and check for burns or cracks. Disconnect the wire from the distributor or coil pack, checking for corrosion and a tight fit. Check all remaining wires for secure fastening. If new wires are needed, purchase a set for your specific engine model and replace them one at a time. Also, check the distributor cap and rotor for wear, cracks, carbon tracks, and worn or loose contacts. Replace with new parts if defects are found, and always install a new cap and rotor when installing new spark plug wires.