The Spitronics TXW (Throttle-by-Wire) Controller provides precise electronic throttle control for modern engine management applications. Designed to integrate seamlessly with Spitronics ECUs, the TXW system allows accurate control of electronic throttle bodies while providing enhanced drivability, throttle response customization, safety monitoring, and advanced tuning capabilities.

Each TXW firmware package is specifically configured to suit the throttle body and application requirements, ensuring optimal performance and reliable operation. The controller supports multiple sensor inputs and safety strategies, making it suitable for street, performance, motorsport, and custom vehicle applications.

The TXW Controller continuously monitors throttle pedal position, throttle body position, engine speed, and other configurable inputs to deliver smooth and predictable throttle operation. Multiple throttle maps can be selected to alter pedal sensitivity and vehicle response, allowing the driver to switch between economy, street, sport, or race configurations.

Sensors

The TXW Controller supports a variety of sensor inputs including:

• Accelerator Pedal Position Sensors (APPS)
• Throttle Position Sensors (TPS)
• Engine RPM inputs
• Vehicle Speed inputs
• Brake Switch inputs
• Clutch Switch inputs
• Low Range Switches
• Tune/Map Selection Switches
• Additional configurable safety and auxiliary inputs

Features

Key TXW features include:

• Electronic throttle body control
• Multiple throttle response maps
• Up to 4 selectable Tune/Map configurations
• Custom throttle curve tuning
• Launch and traction-related throttle strategies
• Safety monitoring and fault protection
• Limp-home functionality
• RPM and vehicle speed-based throttle control
• Brake and clutch input integration
• Adjustable pedal-to-throttle mapping
• Smooth idle and cruise throttle operation
• Application-specific firmware configuration

GP Outputs

Up to 2 configurable General Purpose outputs can be used for:

• Cooling fan control
• Shift lights
• Warning indicators
• Auxiliary relays
• Custom user-defined functions

Documentation & Support

Check out the technical data in the Overview / Features / Specifications / Product Comparison Chart below, or download the PDF version to explore TXW compatibility, firmware options, wiring diagrams, and installation guidelines.