{"product_id":"gen-2-standalone-engine-management-system-for-ka24de","title":"Gen 2 Standalone Engine Management System for KA24DE","description":"The MegaSquirt NS9501b Gen 2 is a standalone engine management system specifically engineered as a direct-fit replacement for the factory ECU in 1995 USDM Nissan 240SX models equipped with the KA24DE engine. This plug-and-play unit integrates seamlessly with the factory harness, simplifying installation and eliminating the need for extensive wiring modifications. It features a MAP sensor for engine load calculation, rendering the factory Mass Air Flow meter obsolete, though removal is recommended for a slight performance gain.\n\nInstallation involves basic hand tools such as a 10mm socket, screwdrivers, and zip ties. The ECU bracket is reused, and a vacuum line must be routed from the engine to the ECU location through the firewall. Careful routing is essential to avoid interference with pedals or cables. A timing light and a laptop with TunerStudio software are required for initial setup and base timing verification. The system comes pre-loaded with a base ignition map, but users must adjust the \"Trigger Angle\" in TunerStudio to achieve the correct 15 degrees of base timing, confirmed with a timing light.\n\nThis system supports advanced configurations, including an optional bolt-in trigger disc (Part No. TW_SR20 for KA24DE) that enhances timing control, enabling sequential injection and distributorless ignition conversions. Settings within TunerStudio must be adjusted accordingly for spark mode, ignition input capture, and trigger wheel arrangement to utilize these features. Furthermore, enabling sequential injection requires moving specific jumpers inside the MSPNP unit, depending on the PCB version (1.2 or 1.3).\n\nThe MegaSquirtPNP, like any programmable engine management system, is sold for off-road\/race use only and may not be legal for use on pollution-controlled vehicles. Users should check federal and local laws regarding emissions compliance.","brand":"MegaSquirt","offers":[{"title":"Default Title","offer_id":52689023369528,"sku":"NS9501b","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687366956.jpg?v=1784900579","url":"https:\/\/store.motormia.co\/products\/gen-2-standalone-engine-management-system-for-ka24de","provider":"MOTORMIA","version":"1.0","type":"link"}