{"product_id":"michigan-motorsports-ls-3-wire-extension-harness-24-tps-3-wire-pressure-sensor-extension-metripack-fit","title":"Michigan Motorsports LS 3-Wire Extension Harness 24\" – TPS \u0026 3-Wire Pressure Sensor Extension, Metripack Fit","description":"\u003cp\u003e\u003cstrong\u003eMichigan Motorsports 24\" LS 3-wire extension harness extends TPS, oil pressure, and coolant pressure sensor connections for Gen III\/IV LS engines without cutting or splicing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis 24-inch extension harness from Michigan Motorsports provides a factory-style solution when you need extra lead length for throttle position sensors (TPS) or 3-wire pressure senders during LS swaps, EFI conversions, or forced-induction installations. Manufactured to match OEM connector fit and wiring configuration, the harness keeps signal integrity while simplifying routing in tight engine bays or when relocating sensors for clearance or packaging reasons.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this harness fit my LS engine and sensors?\u003c\/h3\u003e\n\u003cp\u003eThe harness is built to plug directly into OE-style Metripack connectors used on TPS and many pressure sensors for Gen III\/IV LS families like LS1, LQ4, LQ9 and LSX. No rewiring or adapter pigtails are required when matching like-for-like sensors, so install is fast and clean.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect Metripack-compatible ends for TPS and 3-wire pressure senders\u003c\/li\u003e\n  \u003cli\u003eDesigned for LS1, LSX, LQ4, LQ9 and similar Gen III\/IV platforms\u003c\/li\u003e\n  \u003cli\u003ePerfect mating with Holley 554-102 style stainless pressure transducers\u003c\/li\u003e\n  \u003cli\u003eMaintains correct wire order and signal continuity for ECU-reading accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this harness survive heat and vibration under the hood?\u003c\/h3\u003e\n\u003cp\u003eYes — the Michigan Motorsports extension uses heat-resistant insulation and robust connector shells to withstand elevated temperatures and engine bay movement. It keeps contacts secure and prevents premature wear even in forced-induction or high-performance environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRugged wire jacket resists heat and abrasion\u003c\/li\u003e\n  \u003cli\u003eHigh-quality pins and sealed connector bodies reduce corrosion risk\u003c\/li\u003e\n  \u003cli\u003eStrain-relieved ends to minimize connector stress under vibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this with aftermarket EFI systems or relocated sensors?\u003c\/h3\u003e\n\u003cp\u003eThis harness is ideal for aftermarket EFI installations and sensor relocation where stock wiring falls short. It preserves factory wiring behavior so aftermarket ECUs and pressure transducers receive correct signals without custom splices.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play for Holley-style pressure transducers (e.g., 554-102)\u003c\/li\u003e\n  \u003cli\u003e24\" length gives flexibility for turbo, supercharger, or custom packaging\u003c\/li\u003e\n  \u003cli\u003eAvoids cutting OEM harnesses, keeping vehicle resale and wiring integrity intact\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does installation compare to cutting and splicing the factory harness?\u003c\/h3\u003e\n\u003cp\u003eInstalling this extension is faster, cleaner, and more reliable than hacksaw-and-solder solutions. It eliminates the need to modify factory wiring, reduces risk of wiring faults, and leaves a professional-looking engine bay with OEM-style connectors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo crimp, solder, or heat-shrink required for basic installations\u003c\/li\u003e\n  \u003cli\u003eReversible — remove or re-route sensors without permanently altering OE wiring\u003c\/li\u003e\n  \u003cli\u003eMaintains OEM-grade signal shielding and connector fitment for accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you're performing an LS swap, upgrading to aftermarket EFI, relocating pressure senders for packaging or clearance, or building a turbo\/supercharged LS platform, this Michigan Motorsports 24\" 3-wire extension harness saves time and preserves factory-style wiring. It’s designed for builders and technicians who want a dependable, serviceable solution that keeps sensor wiring correct and accessible without cutting into the original harness.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this harness plug into my LS1 TPS?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It uses OE-style Metripack connectors and fits LS1 throttle position sensors without splicing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is it compatible with Holley 554-102 pressure sensors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The harness is built to mate directly with Holley 554-102 style 3-wire transducers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Michigan Motorsports","offers":[{"title":"Default Title","offer_id":67593266790585,"sku":"B07TLZC8FK","price":60.86,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/michigan-motorsports-front-connector-view_dec5d7b4-70c1-44ba-b55d-3888091a7bb1.jpg?v=1790573836","url":"https:\/\/redleafauto.ca\/products\/michigan-motorsports-ls-3-wire-extension-harness-24-tps-3-wire-pressure-sensor-extension-metripack-fit","provider":"Redleaf Auto","version":"1.0","type":"link"}