How do you change spark plugs in Nissan Pulsar 2005 n16?

To change the spark plugs in a 2005 Nissan Pulsar N16, first ensure the engine is cool and disconnect the negative battery terminal. Remove the engine cover if applicable, then locate the spark plug wires and gently disconnect them. Use a spark plug socket and ratchet to remove the old plugs, checking for any signs of wear. Install the new spark plugs, ensuring they are properly gapped, and reconnect the wires and battery terminal.