FiTech Fuel Injection 70051 Ultimate LS Standalone ECU – With Trans Control

FiTech Fuel Injection 70051 Ultimate LS Standalone ECU – With Trans Control

The FiTech Fuel Injection 70051 Ultimate LS Standalone ECU – With Trans Control is a self-learning standalone ECU designed for LS Gen III and IV engines with crank and cam sensors. It replaces the OEM computer and harness, supporting factory intake, injectors, and cable-operated throttle bodies, and integrates electronic control for GM 4L60, 4L65, 4L70, or 4L80 transmissions for optimized engine and transmission performance.

Key Features

• Self-learning ECU with color touch screen controller for easy setup and configuration
• Sequential fuel and spark control with individual cylinder trim
• 3 BAR MAP sensor supports up to 30 PSI boost for power adder applications
• Electronic transmission control compatible with GM 4L60, 4L65, 4L80, and 4L85 transmissions
• 24X and 58X crank and cam sensor compatibility
• Knock sensor control and programmable fan control outputs
• Outputs for tachometer and speedometer drivers
• Includes stainless steel O2 sensor bung kit (clamp or weld on)

Fitment

• Small Block V8 GEN III/IV LS-based Chevrolet street and performance engines
• Compatible with GM 4L60, 4L65, 4L80, and 4L85 electronically controlled automatic transmissions

Note: Does not support drive-by-wire throttle bodies or variable valve timing without modification. Not legal for use on emission-controlled vehicles. Verify compatibility before ordering.