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To repair the ignition signal in a 2000 Infiniti Q45, first, check the ignition coils and wiring for any visible damage or corrosion. Use a multimeter to test the ignition coil resistance and the continuity of the signal wires. If the coils are functioning correctly, inspect the crankshaft position sensor and its connections, as a faulty sensor can disrupt the ignition signal. Replace any defective components and clear any diagnostic trouble codes before retesting the system.

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15h ago

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