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Civic Spark plugs

Your Civic

Pick your year to see what fits.

This page covers the US Civic, 1992 on.

Restores lost power
Medium$60–$801 hr
All Civic mods

Why do it

Worn plugs cost power and throttle response.

Tools you'll need

Starting out? See our budget tool list.

Parts to buy

Double-check fitment before buying. We may earn a commission when you buy through these links, at no extra cost to you.

Before you start

  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.
  • Work on a cold engine. Do one plug at a time.

Steps

  1. Prepare

    • Move the wire harness out of the way.
    Watch this step (on a 10th gen 1.5T) (1:25–2:08)

  2. Remove the coils

    • Take out the coils.
    Watch this step (2:08–3:21)

  3. Remove the old plugs

    • Take out the plugs.
    Watch this step (4:04–5:40)

  4. Fit the new plugs

    • Check the gap and fit them.
    Watch this step (5:40–6:36)

  5. Finish up

    • Tighten everything and refit it all.
    Watch this step (6:36–10:23)

  6. Prepare

    • Move the wire harness out of the way.
    Watch this step (on a 10th gen 1.5T) (1:25–2:08)

  7. Remove the coils

    • Take out the coils.
    Watch this step (2:08–3:21)

  8. Remove the old plugs

    • Take out the plugs.
    Watch this step (4:04–5:40)

  9. Fit the new plugs

    • Check the gap and fit them.
    Watch this step (5:40–6:36)

  10. Finish up

    • Tighten everything and refit it all.
    Watch this step (6:36–10:23)

  11. Remove the old plugs

    • Pull each wire and take out the plug.
    Watch this step (on a 92-00 Civic) (0:29–0:54)

  12. Fit the new plugs

    • Fit them and refit the wires.
    Watch this step (0:54–1:37)

  13. Remove the coils

    • Take out the coils.
    Watch this step (on a 01-05 1.7L) (1:03–1:56)

  14. Remove the old plugs

    • Take out the plugs.
    Watch this step (1:56–2:58)

  15. Fit the new plugs

    • Fit them.
    Watch this step (2:58–4:29)

  16. Put it back

    • Reassemble.
    Watch this step (4:29–6:21)

  17. Remove the engine cover

    • Take it off.
    Watch this step (on a 2002 Si) (0:30–1:06)

  18. Remove the coils

    • Take out the coil packs.
    Watch this step (1:06–2:10)

  19. Swap the plugs

    • Swap each plug.
    Watch this step (2:10–4:40)

  20. Put it back

    • Reassemble.
    Watch this step (4:40–7:38)

  21. Remove the cowl

    • Take off the windshield trim.
    Watch this step (on a 2006-2011 Si) (0:00–1:23)

  22. Get to the valve cover

    • Clear the top.
    Watch this step (1:23–2:38)

  23. Remove the coils

    • Take out the coils.
    Watch this step (2:38–3:37)

  24. Remove the old plugs

    • Take out the plugs.
    Watch this step (3:37–5:04)

  25. Fit the new plugs

    • Fit them.
    Watch this step (5:04–5:44)

  26. Remove the coils

    • Take out the coils.
    Watch this step (on a 2012-2015 Civic) (0:14–1:08)

  27. Remove the old plugs

    • Take out the plugs.
    Watch this step (1:08–2:04)

  28. Fit the new plugs

    • Fit them.
    Watch this step (2:04–2:44)

  29. Refit the coils

    • Fit the coils.
    Watch this step (2:44–3:55)

  30. Remove the cowl

    • Take off the cowl panel.
    Watch this step (on a 2012-2015 Si) (0:26–2:09)

  31. Remove the cover

    • Take off the metal cover.
    Watch this step (2:09–3:16)

  32. Swap the plugs

    • Swap the plugs.
    Watch this step (3:16–4:41)

  33. Put it back

    • Reassemble.
    Watch this step (4:41–6:33)

  34. Remove the old plugs

    • Pull each wire and take out the plug.
    Watch this step (on a 92-00 Civic) (0:29–0:54)

  35. Fit the new plugs

    • Fit them and refit the wires.
    Watch this step (0:54–1:37)

  36. Remove the old plugs

    • Take out the plugs.
    Watch this step (on an EM1 Si) (0:40–2:37)

  37. Fit the new plugs

    • Fit them and torque them.
    Watch this step (2:37–5:51)

  38. Route the wires

    • Refit the wires.
    Watch this step (5:51–7:34)

  39. Remove the coils

    • Take out the coils.
    Watch this step (on a 2006-2011 1.8L) (0:10–1:10)

  40. Remove the old plugs

    • Take out the plugs.
    Watch this step (1:10–1:28)

  41. Fit the new plugs

    • Add anti-seize and fit them.
    Watch this step (1:28–2:56)

  42. Remove the old plugs

    • Unscrew them.
    Watch this step (on an FK8) (4:06–4:45)

  43. Check the gap

    • Check the plug.
    Watch this step (4:45–7:37)

  44. Fit the new plugs

    • Fit them.
    Watch this step (7:37–8:21)

How to know it worked

Did this guide work for you?

Safety first

  • Park on flat ground, set the parking brake and chock the wheels.
  • Never get under a car held up only by a jack. Use jack stands.
  • Let the engine and exhaust cool first.
  • Disconnect the battery before unplugging electrical parts.
  • Wear safety glasses.
  • If something doesn't match your car, stop and ask a shop.

Follow your part's instructions and your service manual's torque specs.