Under the silver cover on the valve cover. You remove it with 10mm socket.
gap on sparkplug for 2007 honda civic si
4
To change the spark plugs on a 2007 Honda Civic Si, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the engine cover, then carefully disconnect the ignition coils by unfastening the bolts and pulling them out. Use a spark plug socket to remove the old spark plugs, and then install the new ones, making sure to torque them to the manufacturer's specifications. Finally, reattach the ignition coils and engine cover, and reconnect the battery.
The best spark plug for a stock civic si is ngk.
go to auto zone and give description of car ask for bosch spark plugs they come with the gap specialized to ure car specification.
The price range for a 2007 Honda Civic SI can really vary depending on it's features and mileage. Kelly Blue Book has the 2007 Honda Civic SI at about $12,000.
19mm
44
Any engine lite usually means emission problems. Your spark plugs or wires could be faulty or just dirty.
8th gen civic si's have electric power steering,
Most plugs are pre gapped. You can also check the emissions sticker under the hood or the car's manual, it should have the correct gap settings.
19mm