{"product_id":"ignition-coil-iridium-spark-plugs-for-nissan-sentra-2002-2006-1-8l","title":"Ignition Coil \u0026 Iridium Spark Plugs for Nissan Sentra (2002-2006) 1.8L","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plugs for 2002-2006 Nissan Sentra\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect replacement ignition coils and iridium spark plugs designed to restore lost power, eliminate misfires, and ensure consistent combustion events.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Sentra Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eThe factory QG18DE ignition system in the B15 Sentra is notoriously susceptible to thermal degradation and voltage leaks over high mileage. Prolonged exposure to extreme engine bay heat cycles degrades the epoxy potting inside the OEM coils, leading to micro-cracks in the polymer housing. This breakdown compromises the dielectric insulation, allowing secondary voltage to arc to the cylinder head rather than firing the plug. The result is a weak spark, unburned fuel, erratic idling, and intermittent misfires under load, which also accelerates carbon fouling on standard copper or platinum plugs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition kit directly addresses these thermal and electrical vulnerabilities. The upgraded ignition coils are constructed using high-temperature-resistant polymer housings and advanced epoxy potting compounds that resist thermal shock and prevent internal winding degradation. By incorporating high-conductivity female blade terminals and premium magnetic steel cores, these coils maximize energy transfer for a hotter, more consistent spark. Paired with the included iridium spark plugs—which feature an ultra-fine wire center electrode and an exceptionally high melting point—the system significantly reduces the required firing voltage while improving flame kernel propagation. This synergistic upgrade ensures complete combustion, restoring factory horsepower, smoothing idle quality, and drastically extending service intervals compared to conventional components.\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;\"\u003e2002-2006 Nissan Sentra\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;\"\u003eQG18DE \/ B15\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;\"\u003e126 hp \/ 129 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;\"\u003eIC78053358047810446904\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2002 Nissan Sentra 1.8L\u003c\/li\u003e\n  \u003cli\u003e2003 Nissan Sentra 1.8L\u003c\/li\u003e\n  \u003cli\u003e2004 Nissan Sentra 1.8L\u003c\/li\u003e\n  \u003cli\u003e2005 Nissan Sentra 1.8L\u003c\/li\u003e\n  \u003cli\u003e2006 Nissan Sentra 1.8L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Nissan Caliber\u003c\/h3\u003e\n\u003cp\u003eRestoring proper ignition function is essential for maximizing the efficiency of your JDM-inspired QG18DE powerplant, ensuring optimal throttle response, restored horsepower, and dependable daily performance.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48345027444984,"sku":"DS-EEFLQI8DM","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-nissan-sentra-2002-2006-1-8l-1.webp?v=1778181494","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-iridium-spark-plugs-for-nissan-sentra-2002-2006-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}