Parts for your 2021 Mitsubishi Eclipse cross-Ignition leads

Ignition leads on the 2021 Mitsubishi Eclipse Cross

For the 2021 Mitsubishi Eclipse Cross, traditional ignition leads aren’t fitted or required. Both the 1.5‑litre turbo petrol and the 2.4‑litre petrol used in the PHEV run a coil‑on‑plug (COP) direct ignition system. That means each cylinder has its own ignition coil sitting directly on top of the spark plug, so there are no separate high‑tension leads running from a coil pack or distributor.

This layout is confirmed in Mitsubishi workshop literature for the Eclipse Cross (Ignition System – Direct Ignition/Coil‑On‑Plug) and reflected in Mitsubishi parts catalogues for the model years covering 2021, which list individual ignition coils and spark plugs but no “high‑tension cord” or “ignition lead” sets. Modern COP design is also widely documented in industry references as the standard for late‑model petrol engines because it simplifies the high‑voltage path and improves spark control.

Why no ignition leads on this model?

• Direct spark delivery: With the coil mounted on the plug, there’s virtually no energy loss through long cables.
• Better reliability and packaging: Fewer components, less heat cycling on cables, and cleaner engine bay routing.
• Sharper control: The ECU can manage dwell and spark timing per cylinder for smoother running and lower emissions.
• Less maintenance: There’s nothing to replace in terms of leads, scheduled items are spark plugs, and coils only if faulty.

For owners thinking about servicing: instead of replacing leads, plan for spark plug changes at the interval specified in the service schedule (commonly around 90,000–100,000 kilometres for iridium plugs, but always check the exact schedule for the vehicle). During plug replacement, a technician will typically inspect the individual coils and their rubber boots for carbon tracking, oil intrusion or heat damage. Misfire symptoms such as rough idle, hesitation, poor fuel economy or a flashing check‑engine lamp are more likely to point to a coil or plug issue rather than a lead on this model.

Technical sources referenced: Mitsubishi Eclipse Cross workshop/service information describing a direct ignition (coil‑on‑plug) system for 2021 models, Mitsubishi parts catalogues for Eclipse Cross listing individual ignition coils and spark plugs and no high‑tension lead set, general automotive engineering references documenting COP adoption on modern petrol engines.

Popular questions

Does a 2021 Eclipse Cross have ignition leads?
No. It uses a coil‑on‑plug ignition system, so there are individual coils on each spark plug and no separate high‑tension leads to replace or maintain.

What do I service instead of ignition leads on a 2021 Eclipse Cross?
Follow the service schedule for spark plug replacement (often around 90,000–100,000 kilometres for iridium plugs). At the same time, have the technician check the ignition coils and boots for wear or contamination and replace only if faulty.

How do I diagnose a misfire if there are no leads?
Scan for fault codes (e.g., P0300–P0304). A common workshop step is to swap the suspect coil to another cylinder to see if the misfire follows. Check plug condition and gap, look for oil in the plug tubes, and ensure the coil boots are clean and seated properly.