Download Haltechs Quick Start Guide Here Harness Overview: The Haltech Elite 2000/2500 Terminated Engine Harness for Toyota 2JZ is the fastest and most cost-effective way to wire your race car or engine conversion. With a straightforward plug-and-play setup, this harness allows you to be up and running in just a few hours. Key Features: Quick Installation: Simply connect a few labeled wires for a hassle-free setup. The included quick start guide will walk you through the installation process. Comprehensive Guide: The product comes with a full ECU manual and software on a CD or USB key to assist with installation and configuration. Plug'n'Play Efficiency: Designed to work seamlessly with Haltech Elite ECUs, providing a smooth integration with the factory harness. Performance Tuning: When installed with a Haltech Elite ECU, this harness supports extensive performance modifications, delivering the precise amount of fuel and ignition timing for maximum engine output under all operating conditions. Compatibility: Vehicle Suitability: Ideal for Toyota 2JZ engines and can also support 1JZ-GTE engines with a 2JZ coolant temperature sensor or a connector change (P/N AMP 184004). Transmission: Suitable for manual transmissions only. In the Box: Terminated Engine Harness Firewall Grommet Moulded 6 Power Circuit Haltech Fuse Box and Lid 5 Relays 5 Fuses Pins for the Spare Power Circuit Harness Features: Color-Coded and Labeled Wires: All wires are color-coded and labeled to match the detailed wiring diagram, ensuring a confusion-free installation. Pre-Wired Connections: Pre-wired to connect directly to OEM components, providing a seamless integration with your vehicle's factory systems. Performance Tuning: The harness, when used with a Haltech Elite ECU, allows for extensive tuning capabilities, enabling you to extract maximum performance from your engine by precisely controlling fuel delivery and ignition timing. Notes: This harness is compatible with 1JZ-GTE engines, but it will require a 2JZ coolant temperature sensor or a connector change to P/N AMP 184004 for proper installation.