{"product_id":"ignition-coil-and-iridium-spark-plugs-for-toyota-corolla-2009-2017-1-8l-1","title":"Ignition Coil and Iridium Spark Plugs for Toyota Corolla (2009-2017) 1.8L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2009-2017 Toyota Corolla\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores factory secondary ignition voltage and combustion efficiency across all four cylinders to eliminate misfires, rough idling, and engine hesitation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Corolla Ignition System Weakness\u003c\/h3\u003e\n\u003cp\u003eContinuous thermal cycling inside the compact 2ZR-FE cylinder head leads to dielectric breakdown and thermal fatigue within factory ignition coil potting epoxy. Over extended mileage, micro-fractures in the coil insulation trigger internal arcing and secondary resistance buildup. Compounded by gradual spark plug gap expansion and electrode erosion, the ignition system demands higher primary voltage to jump the gap, resulting in unburned fuel, reduced fuel economy, and P0300 through P0304 misfire diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement ignition kit pairs four direct-replacement coil-on-plug assemblies with laser-welded iridium spark plugs. The ignition coils feature high-purity copper windings and silicon steel magnetic cores sealed in thermal-shock-resistant epoxy to prevent voltage leakage under high-load operating conditions. The ultra-fine iridium center electrodes require lower firing voltage while offering superior erosion resistance, generating a stable, high-intensity flame kernel for optimal combustion chamber flame propagation.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2009-2017 Toyota Corolla\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1.8L I4 (2ZR-FE \/ 2ZR-FAE) \/ E140 \u0026amp; E170\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e132 hp \/ 128 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e90919-02240, 90919-02241, UF596\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2009-2017 Toyota Corolla 1.8L 4-Cylinder (All Trims: Base, CE, L, LE, LE Eco, S, SE, XLE, XSE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Toyota Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to match original equipment electrical specifications and connector geometry, this ignition kit delivers instant throttle response, smooth idle stability, and long-term daily driving dependability for your Corolla without ECU calibration conflicts or check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50429686251768,"sku":"DS-E1JGG3FRW","price":106.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-toyota-corolla-2009-2017-1-8l-1.png?v=1788451085","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-toyota-corolla-2009-2017-1-8l-1","provider":"Performance Chip Tuning","version":"1.0","type":"link"}