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Holley HP EFI ECU & Harness Kit, LS Stand Alone Harness, CPU (59-72 El Camino; 71-72 Sprint)Find parts that fit my vehicle
Item EK-55-852279-1
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Product Information
Features, Description, Q&A
Features
- GM LS1/LS6 24x Crank Sensor with Jetronic/Minitimer Bosch-Type Connectors on Injector Harness
- Includes Bosch Wideband Oxygen Sensor
- Suitable for Stock 5.3L Engine Swaps up to 3,000+ Horsepower Race Cars
- Optional Plug-and-Play Hand-Held Programmer with 5.7" Touchscreen and Digital Gauges Available
- Laptop Programmable ECU Includes Variety of Base Maps
- ECU Certified to ISO 8846, SAE J1171, and United States Coast Guard Requirements for Ignition Protection and Fire Resistance
- Supports Boost Control, Nitrous Control, Water/Meth Injection, and Additional Inputs and Outputs
- Kit Includes ECU, Harness, Communication Cable, Software, and Bosch Wideband O2 Sensor
- Plug-and-Play Control of GM LS1/LS6 Engines with Factory GM Coils
- Fully Potted ECU Can Be Mounted in Engine Compartment or Interior
- Sealed Automotive and Marine-Grade Connectors
- 1-5 Bar MAP Sensor Capability
- Industry-Leading Self-Tuning Fuel Strategy for Reduced Tuning Time
- Accelerometer Support
- CAN-Bus Support
- Coil-Per-Cylinder Ignition Support
- Datalogging Support
- Dry Nitrous Control
- E85 Fuel Support
- EGT Support
- Emission Code 3 Compliance
- Fuel Filter, Hose, Injectors, Pressure Regulator, and Pump Not Included
- Performance Grade Type
- Ignition Timing Control
- Individual Cylinder Fuel Corrections
- Knock Retard Support
- Multi-Stage Nitrous Control
- Progressive Nitrous Control
- Self-Tuning Capability
- Traction Control Support
- User-Tuneable
- Wet Nitrous Control
- Fits 59-72 El Camino; 71-72 Sprint
Description
Advanced Fuel and Ignition Control. The Holley EFI Holley HP EFI ECU & Harness Kit, LS Stand Alone Harness, CPU provides comprehensive management of fuel delivery and ignition timing for GM LS engines. It offers plug-and-play installation and a robust software platform enabling users to tune engines ranging from stock configurations to high-performance setups with turbocharging or nitrous injection. This kit facilitates straightforward engine management and eliminates the need to modify factory ECUs during upgrades.
Construction and Appearance. The ECU and harness feature sealed automotive and marine-grade connectors to ensure reliability under harsh conditions. The unit is fully potted to protect against moisture and vibration, allowing flexible mounting inside the engine compartment or interior. The connectors utilize industry-standard Jetronic/Minitimer Bosch-type injector plugs, prioritizing reliability and performance.
Installation. Installation uses plug-and-play harnesses that connect directly to factory sensors and coils, requiring only wiring power and grounds. This design simplifies setup and reduces vehicle downtime.
Application. Fits 59-72 El Camino; 71-72 Sprint with no additional exclusions or notes.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
4.8
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