Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.
Features:
	
NEW V4 SOFTWARE FEATURES
	
“Quick Start” ignition and fueling strategy for LS x Engines
	
Data Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more
	
Strip Chart Real-Time Data Viewer
	
Integrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM), Boost vs RPM, Boost vs Speed, Launch control. Boost launch builder, Over-boost safeties, Boost scramble
	
Traction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)
	
“Quick Start” fueling for all engines
	
Option for VE based fueling strategy
	
Fuel Map and Learn Function Smoothing
	
Configurable User Password Protection
	
Fully Configurable lap top Gauge Panel
	
FEATURES
	
Optional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel
	
Eight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies
	
Eight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
	
Plug and Play control of factory GM 24x and 58x LSx engines
	
Integrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors
	
Internal data-logging standard with a huge 2GB of memory
	
4 Stage progressive nitrous control
	
Turbo boost control
	
Integrated water/methanol injection control
	
Self-tuning fuel table strategy greatly simplifies tuning process
	
Individual cylinder fuel and spark control allows you to unlock your engine’s potential
	
Works with 4, 6, 8 cylinder engines
	
Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning
	
Advanced idle, closed loop, and enrichment strategies allow for very stable operation
	
ECU is fully potted and can be mounted in the engine compartment or interior
	
Sealed automotive and marine grade connectors
	
Allows for use of common OEM sensors as well as customer sensor calibration input
	
Ignition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process. Custom settings can be configured to allow many other applications
	
1-5 Bar MAP sensor capability
	
Two channel knock control sensor Inputs for both one or two wire knock sensors
	
Dedicated fuel and oil pressure inputs
	
Controls both stepper and PWM Idle Air Control (IAC) motors
	
Speed density, Alpha-N, or combination fueling strategies
	
4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use
	
4 Stage nitrous oxide control
	
Fully featured nitrous control eliminates the need for a separate nitrous controller device
	
Can be configured “Wet” or “Dry” with closed loop feedback
	
Progressive control based on time, RPM, or boost, requires part # 554-111
	
Lean or rich safety cutoff
	
Full timing retard/control configurability per stage based on RPM or time
	
Integrated Water/Methanol injection control
	
Uses Holley Water/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water/Meth flow as a percentage of fuel injector flow for Water/Meth tubing