{"id":511453,"date":"2022-07-24T12:51:29","date_gmt":"2022-07-24T16:51:29","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/1998-infiniti-q45-problems-reliability\/"},"modified":"2026-08-24T22:43:05","modified_gmt":"2026-08-25T02:43:05","slug":"1998-infiniti-q45-problems-reliability","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/1998-infiniti-q45-problems-reliability\/","title":{"rendered":"1998 Infiniti Q45 Problems & Reliability"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,319],"tags":[44,320,772],"class_list":["post-511453","post","type-post","status-publish","format-standard","hentry","category-car","category-infiniti","tag-44","tag-infiniti","tag-q45"],"acf":{"sku":"","year":"","make":"","model":"","post_title":"","featured_image":null,"introduction":"","what_is_pcm_programming":"","signs_your_year_make_model_needs_pcm_programming":"","product_title":"","product_view_link":"","how_pcm_programming_works_for_year_make_model":"","engine_size":"","engine_size_1_url":"","engine_size_2":"","engine_size_2_url":"","description":"When it comes to luxury sedans from the late '90s, the 1998 Infiniti Q45<\/a> often stands out as a symbol of elegance and performance. As a flagship model for Infiniti, Nissan's luxury vehicle division, the Q45 was designed to compete with the likes of the BMW 7 Series and the Mercedes-Benz S-Class. With its powerful V8 engine, sophisticated styling, and a host of high-end features, the Q45 aimed to deliver a premium driving experience. However, like any vehicle of its era, it wasn't without its share of problems and reliability concerns. For those who appreciate the blend of luxury and performance, understanding the common issues associated with the 1998 Infiniti Q45 can be crucial, whether you're considering a purchase or simply curious about automotive history.\n\nIn this blog post, we'll delve into the most common problems reported by owners and experts alike, shedding light on the reliability of this iconic sedan. From engine performance hiccups to electrical system quirks, we'll explore the challenges that have surfaced over the years. Additionally, we'll discuss how these issues have impacted the car's reputation and what potential buyers should be aware of when considering a used model. Whether you're a car enthusiast, a prospective buyer, or someone who simply enjoys a trip down memory lane, this exploration of the 1998 Infiniti Q45's problems and reliability will provide valuable insights into a vehicle that once defined luxury on the road.","body_reported_problems":"

N\/A<\/p>","body_analysis":"

No major Body Components problems have been reported for the 1998 Infiniti Q45.<\/p>","brake_system_reported_problems":"

N\/A<\/p>","brake_system_analysis":"

No major Brake System problems have been reported for the 1998 Infiniti Q45.<\/p>","heating_&_cooling_reported_problems":"

N\/A<\/p>","heating_&_cooling_analysis":"

No major Heating & Cooling problems have been reported for the 1998 Infiniti Q45.<\/p>","drivetrain_reported_problems":"

N\/A<\/p>","drivetrain_reported_analysis":"

No major Drivetrain problems have been reported for the 1998 Infiniti Q45.<\/p>","interior_electronics_reported_problems":"

N\/A<\/p>","interior_electronics_analysis":"

No major Interior Electronics problems have been reported for the 1998 Infiniti Q45.<\/p>","cooling_system_reported_problems":"

N\/A<\/p>","cooling_system_analysis":"

No major Cooling System problems have been reported for the 1998 Infiniti Q45.<\/p>","ignition_&_wiring_reported_problems":"

N\/A<\/p>","ignition_&_wiring_analysis":"

No major Ignition & Wiring problems have been reported for the 1998 Infiniti Q45.<\/p>","engine_repairs_reported_problems":"

N\/A<\/p>","engine_repairs_analysis":"

No major Engine Repairs problems have been reported for the 1998 Infiniti Q45.<\/p>","exhaust_system_reported_problems":"

N\/A<\/p>","exhaust_system_analysis":"

No major Exhaust System problems have been reported for the 1998 Infiniti Q45.<\/p>","fuel_&_emissions_reported_problems":"

N\/A<\/p>","fuel_&_emissions_analysis":"

No major Fuel & Emissions problems have been reported for the 1998 Infiniti Q45.<\/p>","onboard_electronics_reported_problems":"

N\/A<\/p>","onboard_electronics_analysis":"

No major Onboard & Powertrain Control Electronics problems have been reported for the 1998 Infiniti Q45.<\/p>","strange_sounds_&_leaks_reported_problems":"

N\/A<\/p>","strange_sounds_&_leaks_analysis":"

No major Strange Sounds & Leaks problems have been reported for the 1998 Infiniti Q45.<\/p>","exterior_finish_reported_problems":"

N\/A<\/p>","exterior_finish_analysis":"

No major Exterior Finish problems have been reported for the 1998 Infiniti Q45.<\/p>","suspension_&_steering_reported_problems":"

N\/A<\/p>","suspension_&_steering_analysis":"

No major Suspension & Steering problems have been reported for the 1998 Infiniti Q45.<\/p>","transmission_repairs_reported_problems":"

N\/A<\/p>","transmission_repairs_analysis":"

No major Transmission Repairs problems have been reported for the 1998 Infiniti Q45.<\/p>","conclusion":"","image":""},"yoast_head":"\n1998 Infiniti Q45 Problems & Reliability<\/title>\n<meta name=\"description\" content=\"1998 Infiniti Q45 reliability overview and engine computer (PCM\/ECM) warning signs to watch for.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fs1inc.com\/blog\/1998-infiniti-q45-problems-reliability\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1998 Infiniti Q45 Problems & Reliability\" \/>\n<meta property=\"og:description\" content=\"1998 Infiniti Q45 reliability overview and engine computer (PCM\/ECM) warning signs to watch for.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/1998-infiniti-q45-problems-reliability\/\" \/>\n<meta property=\"og:site_name\" content=\"Flagship One Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/flagshipone\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/flagshipone\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-07-24T16:51:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-25T02:43:05+00:00\" \/>\n<meta name=\"author\" content=\"FlagshipOne\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:site\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"FlagshipOne\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"1998 Infiniti Q45 Problems & Reliability\",\"datePublished\":\"2022-07-24T16:51:29+00:00\",\"dateModified\":\"2026-08-25T02:43:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/\"},\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"keywords\":[\"1998\",\"Infiniti\",\"Q45\"],\"articleSection\":[\"Car\",\"Infiniti\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/\",\"name\":\"1998 Infiniti Q45 Problems & Reliability\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"datePublished\":\"2022-07-24T16:51:29+00:00\",\"dateModified\":\"2026-08-25T02:43:05+00:00\",\"description\":\"1998 Infiniti Q45 reliability overview and engine computer (PCM\\\/ECM) warning signs to watch for.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1998-infiniti-q45-problems-reliability\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"1998 Infiniti Q45 Problems & Reliability\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"name\":\"Flagship One Blog\",\"description\":\"Flagship One Inc. 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