MSD 2957 Atomic LS Master Early Truck Kit (GEN III 1999-2007) Installation - Manual

M S D
• W W W . A T O M I C E F I . C O M • ( 9 1 5 ) 8 5 5 - 7 1 2 3 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
ONLINE PRODUCT REGISTRATION: Register your MSD product online. Registering your product
will help if there is ever a warranty issue with your product and helps the MSD R&D team create
new products that you ask for! Go to www.msdperformance.com/registration.
Atomic LS Master Truck EFI Kits
PN 2957 - 3-Bolt Manifold
PN 2958 - 4-Bolt Manifold
Parts Included:
2 - Fuel Rail Assemblies
1 - Power Module
1 - Handheld Monitor
1 - Wideband O2 Sensor
1 - Weld - in O2 Sensor Bung, Plug, and Crush Washer
1 - CAN Cable
1 - Power Module Main Harness
1 - Power Harness
1 - Cam Sensor Harnesses 4x (PN 2958)
2 - Cam Sensor Harnesses 1x & 4x (PN 2957)
1 - Crank Sensor Harnesses 58x (PN 2958)
2 - Crank Sensor Harnesses 24x & 58x (PN 2957)
1 - MAP Sensor Harnesses (PN 2957)
2 - MAP Sensor Harnesses (PN 2958)
1 - TPS Harness
1 - VVT Harness (PN 2958)
4 - Delphi Injector Harnesses (PN 2957)
4 - EV6 Injector Harnesses (PN 2958)
1 - IAT Sensor and Grommet
1 - 4GB Micro SD Card
4 - Grommets, Sleeves, and Mounting Screws
Not legal for use on pollution controlled vehicles: The MSD Atomic EFI system is not CARB
approved for use on emission controlled vehicles.
Installation of this product requires detailed knowledge of automotive systems
and repair procedures. Installation of fuel system parts and any fuel tank
modifications must be carried out by a qualified automotive technician. Installation of fuel system
parts requires handling of gasoline. Ensure that work is performed in a well ventilated area with an
approved fire extinguisher nearby. Extinguish all open flames, prohibit smoking and eliminate all
sources of ignition in the area of the vehicle before beginning the installation. When working with
fuel systems, eye goggles and other safety apparel should be worn to protect against debris and
sprayed gasoline. The finished work must be thoroughly checked to ensure there are no fuel leaks.
DANGER
CAUTION
WARNING
NOTICE
Thank you for selecting the Atomic LS Truck EFI System! MSD’s Atomic EFI systems are designed
with two major goals; to simplify installation of EFI and deliver better overall performance from your
engine. Simplicity is achieved through wired-less technology to ease installation plus the Atomic is
simple to program with no PC required! Performance is delivered through advanced control of the
fuel and ignition, just as you’d expect from MSD.
4 - Fuel Rail Brackets
8 - Injector Retainer Clips
8 - Short Spacers, Black (PN 2957)
8 - Long Spacers, Black (PN 2958)
4 - 6mm x 16mm HEX Head Bolts
8 - 6mm x 12mm Bolts
4 - 6/32” Socket Head Cap Screws
8 - 8/32” Socket Head Cap Screws
8 - M6 x 90mm Intake Bolts (PN 2957)
8 - M6 x 100mm Intake Bolts (PN 2958)
8 - #12 Washers
2 - 90º - 6AN Fittings
1 - 18” High Pressure Fuel Hose
2 - Fuel Rail End Caps
Parts Required, Not Included:
Fuel System: Fuel Pump, Fuel Filter,
Injectors, Injector O-Rings,
Regulator, and Fuel Line.
Thread sealer for intake bolts.