Ignition Coil + Iridium Spark Plugs for Mitsubishi Mirage (1997-2002) 1.8L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 1997-2002 Mitsubishi Mirage (CJ/CK)

What it Does: The ignition coil and iridium spark plug kit replaces degraded ignition components on the 1997-2002 Mitsubishi Mirage to eliminate secondary ignition misfires and restore combustion efficiency.

The Stock Mitsubishi Mirage Secondary Ignition Breakdown

The 4G93 SOHC engine in the fifth-generation CJ/CK Mirage relies on a waste-spark ignition topology where two cylinder-mounted coil packs fire four cylinders via paired secondary leads. Over sustained thermal cycling, factory coil epoxy degrades, causing internal winding breakdown and dielectric failure under high load. Concurrently, factory copper or conventional nickel spark plugs suffer accelerated electrode erosion and gap enlargement, elevating the required firing voltage beyond what aging MD362907 or MD325048 coils can deliver. This leads to carbon tracking, erratic idle, engine hesitation under open-loop acceleration, and unburnt hydrocarbon buildup in the catalytic converter.

The Engineering Solution

This ignition service kit matches factory primary and secondary resistance parameters to prevent premature driver saturation in the engine control unit. Each direct-mount coil pack features high-grade magnetic steel laminations, high-temperature epoxy potting, and reinforced silicone boots to resist dielectric puncture and thermal fatigue. Paired with fine-wire iridium-tipped spark plugs, the system reduces the ignition voltage requirement across the secondary gap. The high melting point of iridium minimizes gap growth over extended service intervals, ensuring concentrated spark kernel growth, stable flame front propagation, and rapid throttle response under lean-mixture cruise and load conditions.

What's Included

• 2 Ignition Coils
• 4 Iridium Spark Plugs

Technical Specifications

Compatibility

• 1997-2002 Mitsubishi Mirage 1.8L

Frequently Asked Questions & Fitment Warnings

Does this fit the CJ/CK Mirage?

Yes, this is a direct fit for the 1997-2002 Mitsubishi Mirage equipped with the 4G93 engine. This kit is specified strictly for the 1.8L engine and will not fit the 1.5L 4G15 models or universal applications.

Are spark plug wires included with this kit?

No, spark plug wires are not included and must be reused or replaced separately for this 2-coil waste-spark system.

The Mitsubishi Caliber

Preserve authentic JDM throttle response and sharp low-end torque delivery by maintaining your ignition secondary circuit to strict factory tolerances.