Ignition Coils & Iridium Spark Plugs for Acura ILX Honda Civic (2012-2015) 1.8L

Direct Replacement Ignition Coils & Iridium Spark Plugs for 2012-2015 Honda, Acura Civic, ILX (R-Series / FB, DE1)

Restoring optimal ignition timing and spark energy: This ignition coil and iridium spark plug kit replaces failing factory ignition components to resolve misfires, rough idling, and poor fuel efficiency in aging R-Series engines.

The Stock Civic, ILX Ignition Degradation

Over thousands of thermal cycles, the factory Honda and Acura ignition coils suffer from degraded internal epoxy potting and internal winding resistance breakdown. This thermal stress is prevalent in the engine bays of the 9th-generation Civic and early ILX models. As the dielectric insulating materials break down, high-voltage leaks occur, leading to weak spark output. Mechanically, this presents as under-load misfires (often throwing P0300 through P0304 trouble codes), erratic idle behavior, diminished throttle response, and unburned fuel entering the exhaust stream—which can prematurely degrade the catalytic converter. Worn factory spark plugs compound the issue by increasing the voltage demand on already weakened secondary coil windings.

The Engineering Solution

This comprehensive tune-up kit restores factory ignition performance through upgraded materials and precision engineering. The replacement ignition coils feature high-temperature epoxy and premium copper windings to resist heat soak and maintain consistent primary and secondary resistance values under heavy thermal loads. The blade-style terminals utilize precision-machined male connectors to guarantee secure, vibration-resistant seating with the factory female harness. Paired with iridium spark plugs, which feature an ultra-fine center electrode for superior ignitability and lower voltage requirements, this combination ensures a complete, powerful combustion event. The result is normalized fuel trim data, stabilized idle, restored 1.8L engine efficiency, and the complete elimination of ignition-related diagnostic trouble codes.

Technical Specifications

Compatibility

• 2013-2015 Acura ILX l4 2.0L
• 2012-2015 Honda Civic l4 1.8L

The Honda, Acura Precision Standard

Designed for daily-driven reliability, restoring these crucial ignition components ensures precise i-VTEC engagement, eliminates frustrating check engine lights, and keeps your JDM-derived powertrain running flawlessly for its next major mileage milestone.