Holley HP EFI 550-616 4.6 / 5.4 2V Engine Management

For use on 1999-2004 4.6L and 5.4L 2-valve engines

Tired of jumping through hoops and having to play tricks with the factory ECU?  Welcome to a better way.  Is you cam too wild?  Power Adders?  Bring'em on.  Holley EFI has got integral nitrous and boost control.

Plug and play with factory sensors: Crank, Cam, TPS, Coolant temp, etc

Plug and play with factory actuators: Coils, injecotrs, IAC

Connectors for Holley fuel pressure and oil pressure sensors

Connectors for expanded inputs and outputs

Complete plug and play kits include "HP" ECU, Bosch WBO2 sensor, MAP sensor, coild drivers and all necessary harnessess

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. More channels can be added via CAN bus
• 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