{"product_id":"haltech-ht-231001-nexus-plug-in-ecu-honda-ep3-dc5","title":"Haltech HT-231001 Nexus Plug-In ECU – Honda EP3 (01-05) \/ DC5 Integra RSX (02-04)","description":"\u003ch2\u003eHaltech HT-231001 Nexus Plug-In ECU for Honda EP3 (01-05) \u0026amp; Integra\/Acura RSX DC5 (02-04)\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHaltech HT-231001 Nexus Plug-In ECU\u003c\/strong\u003e plugs directly into your factory Honda EP3 or DC5 Integra\/RSX wiring harness and sits neatly in the factory ECU location — no rewiring required. It fully supports vital OEM functions while unlocking modern standalone engine management, wireless Wi-Fi tuning via the Haltech Connect App, and serious race-focused functionality.\u003c\/p\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHonda Civic Type R EP3 (2001–2005)\u003c\/li\u003e\n\u003cli\u003eHonda Integra \/ Acura RSX DC5 (2002–2004)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eSupports manual transmissions only – factory 5 or 6 speed manual.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDrive By Wire throttle support\u003c\/li\u003e\n\u003cli\u003eSingle channel onboard wideband control (supports LSU4.9\/NTK)\u003c\/li\u003e\n\u003cli\u003eBuilt-in Wi-Fi for wireless tuning and diagnostics\u003c\/li\u003e\n\u003cli\u003e4-channel onboard oscilloscope\u003c\/li\u003e\n\u003cli\u003e128MB onboard data logging\u003c\/li\u003e\n\u003cli\u003eFlex Fuel compatible\u003c\/li\u003e\n\u003cli\u003eClosed loop O2 control\u003c\/li\u003e\n\u003cli\u003eKnock control\u003c\/li\u003e\n\u003cli\u003eLong term fuel and ignition learning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOEM Plus \u0026amp; Race Functionality (via Auxiliary Connector)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eO2 control, Flex Fuel, oil pressure and fuel pressure sensing\u003c\/li\u003e\n\u003cli\u003eCO2 boost control\u003c\/li\u003e\n\u003cli\u003eRace timer\u003c\/li\u003e\n\u003cli\u003eAdvanced torque management\u003c\/li\u003e\n\u003cli\u003eLaunch control\u003c\/li\u003e\n\u003cli\u003eNitrous control\u003c\/li\u003e\n\u003cli\u003e2 x half bridge outputs, 4 x digital pulsed outputs, 4 x synchronised pulsed inputs\u003c\/li\u003e\n\u003cli\u003e1 x onboard wideband, 2 x sensor ground, 2 x 12V output, 2 x 5V output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNexus Plug-In ECU\u003c\/li\u003e\n\u003cli\u003eAir temperature + wideband expansion harness, 2.5m (8')\u003c\/li\u003e\n\u003cli\u003eAir temperature sensor (1\/8\" NPT)\u003c\/li\u003e\n\u003cli\u003eAluminium bung for air temperature sensor\u003c\/li\u003e\n\u003cli\u003eMounting brackets and hardware\u003c\/li\u003e\n\u003cli\u003e2.5m vacuum hose and T-piece\u003c\/li\u003e\n\u003cli\u003eHaltech USB-C cable\u003c\/li\u003e\n\u003cli\u003eQuick start guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSupported OEM Functionality\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVTEC solenoid\u003c\/li\u003e\n\u003cli\u003eVTC solenoid\u003c\/li\u003e\n\u003cli\u003eIMRC (dual intake runner system)\u003c\/li\u003e\n\u003cli\u003eSerial communication with the Multiplex Control Unit\u003c\/li\u003e\n\u003cli\u003eCoolant temperature display (dash)\u003c\/li\u003e\n\u003cli\u003eBattery warning light (dash)\u003c\/li\u003e\n\u003cli\u003eA\/C request signal (climate control)\u003c\/li\u003e\n\u003cli\u003eSerial communication with the immobiliser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade to the Nexus Plug-In ECU?\u003c\/h3\u003e\n\u003cp\u003eRather than stripping out your factory harness, the Nexus Plug-In ECU drops straight into the OEM connector and location on your EP3 or DC5, giving you a clean, reliable install with the tuning depth of a full standalone ECU. It's a genuine step up from the ageing factory Honda ECU for street, track, and drift-focused K-series and Honda builds.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit both the EP3 and DC5?\u003c\/strong\u003e\u003cbr\u003eYes – the HT-231001 is designed for the Honda Civic Type R EP3 (01-05) and Integra\/Acura RSX DC5 (02-04).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it support automatic transmissions?\u003c\/strong\u003e\u003cbr\u003eNo, this ECU supports manual transmissions only (factory 5 or 6 speed).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I tune it without a laptop?\u003c\/strong\u003e\u003cbr\u003eYes – it connects via Wi-Fi to the Haltech Connect App for setup, tuning, and live monitoring from a smartphone, as well as NSP software.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen will this be available?\u003c\/strong\u003e\u003cbr\u003eThis is a pre-sale item, expected to ship mid-July 2026.\u003c\/p\u003e","brand":"Haltech","offers":[{"title":"Default Title","offer_id":51418580451643,"sku":"HT-231001","price":2400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/1410\/1563\/files\/HT-231001_03.avif?v=1783470237","url":"https:\/\/racingsolutions.com.au\/products\/haltech-ht-231001-nexus-plug-in-ecu-honda-ep3-dc5","provider":"Racing Solutions","version":"1.0","type":"link"}