MSD LS2 / LS3 Master Kit, LS1 / LS6 Installation Kit Atomic LS EFI Installation Instructions

Below you will find brief information for Atomic LS EFI LS2/LS3 Master Kit, Atomic LS EFI LS1/LS6 Installation Kit. The Atomic LS EFI is a self-tuning fuel system that continuously adjusts after the basic configuration is complete. There is no laptop programming. You will need to input the basic engine descriptors for the initial setup to get the engine running. After the initial startup, the self-learning system will optimize those maps resulting in the best performance possible.

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Atomic LS EFI Master Kit Installation Instructions | Manualzz

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Key features

  • Self-tuning fuel system
  • No laptop programming
  • Continuous adjustments
  • Optimized performance
  • Wideband O2 Sensor
  • Integrated fuel rails
  • Power module with CAN bus communication
  • Handheld monitor interface
  • Advanced setup features
  • Nitrous system support

Frequently asked questions

The system incorporates OE style connectors to use with the factory sensors on the engine. The only external sensor required to add is the supplied Wide-Band Oxygen sensor.

Remove the covers from the fuel rails. Install the mounting brackets on the intake manifold. Install the injectors to the fuel rails. Position the rail assembly over the intake manifold with the injectors aligning with their mounting pockets.

The Power Module of the Atomic LS is the communication hub of the system and provides the high current fuel pump circuit and other input/outputs for optional features. It has two ports for the MSD CAN system as well as a wiring harness. There are connections for the WB02, the Handheld Monitor as well as power and communication to the integrated fuel rails.

Initial setup includes engine type, engine size, camshaft type, coils, injectors, MAP sensor, fuel pump type, idle RPM target, and rev limit. These settings provide the Atomic with enough information to start and run the engine.

Advanced setup includes fan control, air/fuel target settings for various conditions (idle, part throttle, WOT, nitrous, boost), ignition timing adders, TPS enrichment, MAP enrichment, nitrous system enable/disable, speed calibration, and Racepak dash integration.
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