Parts for your 2022 Mitsubishi Eclipse cross-Ignition coils

2022 Mitsubishi Eclipse Cross ignition coils — purpose, care and when to replace

Ignition coils are absolutely fitted to the 2022 Mitsubishi Eclipse Cross. Technical sources including Mitsubishi’s service information for the 1.5L MIVEC turbo petrol (4B40) and the Eclipse Cross PHEV’s 2.4L Atkinson-cycle petrol engine detail coil-on-plug ignition on each cylinder, Mitsubishi’s ASA parts catalogue lists individual coil assemblies per cylinder for these engines, and aftermarket application guides from OE suppliers (e.g., DENSO/NGK) also specify direct-replacement coil-on-plug units. Only diesel engines skip coils, and the 2022 AU/NZ Eclipse Cross range is petrol or PHEV, so ignition coils are relevant to every local model.

On this model, each ignition coil sits directly over a spark plug, turning the 12‑volt feed into the high voltage needed to jump the plug gap and light the air–fuel mix. That’s what keeps the 1.5T perky around town and the PHEV’s petrol engine smooth when it fires up between electric driving stints.

They’re not a scheduled replacement item, but they do wear. When a coil weakens or fails, the ECU will usually log a misfire code (often P0301–P0304), and the driver may notice rough idle, hesitation under load, poor fuel economy, or a flashing check engine lamp.

• Common symptoms: hard starting, stumbles on hills, uneven idle, sulphur/exhaust smell, increased fuel use, and a check engine light with misfire codes.
• Helpful checks: inspect coil boots for cracks or tracking, ensure spark plugs are fresh and correctly gapped, and look for oil in plug tubes from a rocker cover leak.

For servicing, keep the spark plugs on-time (iridium plugs typically last a long stint, but once tired they stress coils). Avoid blasting the engine bay with water, moisture in the plug wells can upset coils. If chasing a misfire, a quick workshop trick is to swap the suspect coil to another cylinder to see if the fault follows it, then confirm with an OBD-II scan.

Replacement is straightforward for a qualified tech: remove the engine cover, unplug the connector, undo the hold‑down bolt, and lift the coil. Refit with a light touch of dielectric grease on the boot and use OEM-quality parts. It’s fine to replace a single failed coil on this platform, though some owners choose to renew the full set at higher kilometres for peace of mind. Driving long with a misfire can overheat the catalytic converter, so prompt attention is smart and saves dollars down the track.

How long do ignition coils last on a 2022 Eclipse Cross?

There’s no fixed interval, but many will see well over 100,000 km, especially with on-time plug changes. Heat, oil intrusion, or extended misfires can shorten life. If performance drops or misfire codes pop up, testing is the go.

Can a bad ignition coil damage the catalytic converter?

Yes. A persistent misfire lets unburnt fuel hit the cat, which can overheat and degrade it. Sorting a faulty coil quickly helps protect the converter and keeps emissions and fuel use in check.

Should all coils be replaced at once or just the faulty one?

It’s acceptable to replace only the failed coil, especially at moderate kilometres. If the vehicle has high mileage or multiple coils test weak, doing the full set can prevent repeat visits and keep the engine running sweet.