Parts for your 2018 Toyota Vitz|yaris-Ignition leads

2018 Toyota Vitz/Yaris – Ignition Leads

Ignition leads aren’t fitted to the 2018 Toyota Vitz/Yaris. This model runs a coil-on-plug (COP) direct ignition system, where an individual ignition coil sits straight on top of each spark plug under the bonnet. That layout eliminates traditional high‑tension ignition leads entirely.

Technical sources back this up: Toyota service information for the 2017–2019 Vitz/Yaris (model codes KSP130/NCP130/NCP131/NHP130) describes a Direct Ignition System with individual coil assemblies over each cylinder and no high‑tension cords. The Toyota Electronic Parts Catalogue for these VIN ranges lists “Ignition Coil Assy” per cylinder but no “Cord, Spark Plug”. Aftermarket references such as Haynes (Yaris 2011–2019) and Autodata also note COP ignition on the common 1NR‑FE, 2NR‑FE, 1NZ‑FE and 1NZ‑FXE engines.

Why no ignition leads? COP improves spark energy and timing accuracy by shortening the high‑voltage path, which helps emissions, fuel economy and reliability. It also saves space in the engine bay and removes a common wear item (long leads) from the maintenance list.

What to service instead: owners should focus on spark plugs, coil boots and the coils themselves. Iridium plugs typically last up to about 120,000 kilometres or around six years, but it’s smart to follow the owner’s handbook and adjust for severe use (lots of short trips, dusty conditions, LPG, etc.). When the plugs are out, a technician should check the coil boots for cracking, carbon tracking and oil in the plug tubes, and replace any suspect boots or coils. If a misfire shows up (rough idle, hesitation, higher fuel use, or a flashing MIL), scan for codes such as P0300–P0304 or P0351–P0354 and test coils under load. Use the correct, OE‑spec iridium plugs, avoid regapping iridium fine‑wire electrodes, and always tighten to the factory torque spec on an alloy head.

Bottom line for the 2018 Vitz/Yaris: there are no ignition leads to replace. Keeping the plugs fresh and the coil boots healthy will deliver the smooth starts, clean burn and kays‑per‑litre this little Toyota is known for.

• Benefits of COP on this model:
  • No high‑tension leads to age, arc or add resistance
  • Stronger, more consistent spark and better combustion
  • Simpler diagnostics and straightforward plug/coil service

Popular questions

Does a 2018 Toyota Vitz/Yaris have ignition leads?
It doesn’t. The car uses coil‑on‑plug ignition, so each spark plug has its own coil on top and there are no traditional high‑tension leads running across the engine.

What should be serviced instead of ignition leads?
Plan on replacing the iridium spark plugs at the recommended interval and inspecting the coil boots for cracks or tracking. Replace any weak coils that trigger misfire codes or cause rough running. This approach covers what ignition leads used to do in older setups.

How often should the spark plugs be replaced?
As a guide, iridium plugs are typically due around 120,000 kilometres or six years, but always check the owner’s manual for your specific engine code and local schedule. If the car sees a lot of short trips or dusty roads, consider earlier checks.