The FiTech EV1 Injector Sub Harness Replacement (70050-4) is an essential component for those using FiTech Ultimate LS EFI systems. This sub-harness facilitates the crucial connection between EV1-style fuel injectors and the FiTech engine control unit (ECU). Designed for LS-based engines, this harness ensures proper fuel delivery and optimal performance. It is important to note that this is sold individually, with most applications requiring two harnesses per engine.
KEY FEATURES AND BENEFITS:
- Reliable Connection: Designed to provide a reliable connection between your EV1 fuel injectors and the FiTech ECU.
- LS Engine Compatibility: Specifically made for LS engines, ensuring correct wiring to the injectors.
- Optimal Fuel System Operation: Ensures that your fuel system operates correctly for best performance.
SPECIFICATIONS:
- Brand: FiTech Fuel Injection
- Manufacturer’s Part Number: 70050-4
- Part Type: Wiring Harness Adapters and Extensions
- Injector Compatibility: EV1 Style
- Engine Compatibility: LS-based engines
- Weight: 3 lbs
- Dimensions: 27 × 3 × 3 in
HOW TO USE:
- Disconnect Power: Ensure the vehicle’s battery is disconnected to prevent electrical shorts.
- Locate Injector Connections: Identify the existing injector connections on your LS engine.
- Remove Old Harness (if applicable): Disconnect and remove the old injector harness, if present.
- Connect EV1 Harness: Plug the EV1 connector end of the FiTech harness into the EV1 fuel injector.
- Connect to FiTech ECU: Plug the other end of the harness into the corresponding connection on your FiTech ECU.
- Secure Connections: Ensure all connections are firmly seated and secure.
- Repeat for Other Injectors: If needed, repeat the process for the other injectors using a second harness.
- Reconnect Power: Reconnect the vehicle’s battery.
- Test System: Start the engine and verify proper fuel injector operation.
BENEFITS OF USING THE FITECH EV1 INJECTOR SUB HARNESS REPLACEMENT (70050-4):
- Proper Fuel Delivery: Ensures optimal engine performance by providing the correct harness.
- Prevents Misfires: Correct connectivity prevents misfires and other issues that can arise from improper wiring.
- Seamless Integration: Designed to work seamlessly with FiTech systems, simplifying installation.
FEATURES:
- Direct Connection: Direct connection to EV1 style fuel injectors.
- FiTech System Compatibility: Designed for FiTech Ultimate LS EFI systems.
- Correct Electrical Connection: Provides the correct electrical connection for fuel injector operation.
- Individual Sale: Sold individually, allowing for correct purchase amount.
- Appropriate Wire Routing: Physical dimensions allow for appropriate wire routing.







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