Page 2 - CAPABILITIES; Po w e r M o d u l e : The Power Module of the Atomic LS7 is the
2 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 CAPABILITIES The Atomic LS7 kit is designed to fit the original equipment intakes. The Atomic LS7 kit is a self integrated Fuel and Ignition c...
Page 3 - Figure 1; PREPARING THE FUEL RAILS FOR IN-
INSTALLATION INSTRUCTIONS 3 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 FUEL RAIL FUEL RAIL COVER LIFT THIS SIDE OF COVER ENOUGH TO CLEAR FUEL RAIL FUEL RAIL FUEL RAIL COVER PUSH COVER FUEL RAIL FUEL RAIL COVER LIFT COVER UP...
Page 4 - FUEL RAIL INSTALLATION; Figure 5
4 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 7. Plug the FPS connector into the fuel pressure sensor under the fuel rail (Figure 5). 8. Connect the CAN cable from one rail to the other (F...
Page 5 - FRONT; STOP HERE
INSTALLATION INSTRUCTIONS 5 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 3. Use the provided torque sequence to torque the manifold bolts down correctly. Bolts #9 and #10 will use the stock length bolts/bushings (Figure 10). ...
Page 6 - FUEL RAIL/ECU WIRING; Alternator: The kit plugs directly into the factory GM alternator.
6 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 7. STOP. Visually inspect and ensure all the injectors are sitting evenly and the injector o-rings are not pinched or visible. Failure to inst...
Page 8 - DRIVER; Figure 15 Wiring
8 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 MAP ECT INJ8* INJ6* COIL S 1, 3, 5, 7 CAN CAN ETC/ V V T ALT COIL S 2, 4, 6, 8 DRIVER SIDE PASSENGER SIDE INJ4* INJ2* INJ7* INJ5* IAC ETC/TPS ...
Page 9 - POWER MODULE INSTALLATION; N o t e : T h e Po w e r M o d u l e; L S; Figure 17 Power Module Wiring Diagram.
INSTALLATION INSTRUCTIONS 9 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 POWER MODULE INSTALLATION The Power Module of the Atomic EFI system handles high current circuits such as the fuel pump and WBO2. The unit has two ports...
Page 10 - FUEL SYSTEM REQUIREMENTS; Power Module; Battery 1, Connect to Positive Battery terminal.; CONNECTOR; This wire functions as a Malfunction Indicator
10 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 FUEL SYSTEM REQUIREMENTS The Atomic LS fuel injection system requires a high pressure fuel pump system. The fuel system is not supplied due t...
Page 11 - FUEL SYSTEM INSTALLATION; Figure 19 Installing Fuel Hose to the Push-Lock Fittings.; severe damage to your engine and/or fuel system.; FUEL INLET FITTINGS AND CROSS-OVER LINE; Due to the variety of intake manifolds and
INSTALLATION INSTRUCTIONS 11 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 FUEL SYSTEM INSTALLATION FUEL FILTER FUEL TANK FUEL PUMP IT IS RECOMMENDED TO MOUNT THE FUEL PUMP IN THE TANK WHENEVER POSSIBLE. IF IT MUST BE MOUNTED ...
Page 12 - WARNING: MSD’s Push-Lock fittings are designed for; Figure 20 Installing Fuel Hose; Properly Installed Push-Lock Fitting; Improperly Installed Push-Lock Fitting
12 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 WARNING: MSD’s Push-Lock fittings are designed for use with the MSD fuel hose only. Do not use the MSD fuel hose with other fittings. Do not ...
Page 13 - WIDE BAND OXYGEN SENSOR INSTALLATION; Figure 23 WBO2 Sensor Location.
INSTALLATION INSTRUCTIONS 13 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 WIDE BAND OXYGEN SENSOR INSTALLATION The MSD Atomic EFI system requires a single Wide Band Oxygen Sensor (WBO2) for operation. MSD suggests that the bu...
Page 14 - PROGRAMMING; Atomic LS Gauges; MAIN MENU
14 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 WARNING: DO NOT ATTEMPT TO START THE ENGINE. Before turning the ignition key to the ON position, confirm all fuel line connections are tight ...
Page 15 - INITIAL SETUP PROGRAMMING; Coils
INSTALLATION INSTRUCTIONS 15 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 INITIAL SETUP PROGRAMMING Scroll down to Initial Setup and push the joystick to the right. The following parameters must be programmed. Engine Type: Th...
Page 16 - Rev Limit
16 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 Fuel Injector: Once the engine type is selected above, the OEM style injector will be automatically loaded in the default calibration file. I...
Page 17 - ADVANCED SETUP; Fans: This setting sets the temperatures to activate two electric; TPS Enrichment
INSTALLATION INSTRUCTIONS 17 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 ADVANCED SETUP The Advanced Setup features are optional as the Initial Setup menu provides the Atomic EFI with the values needed to run the engine. Fea...
Page 18 - MAP Enrichment: To assist in manifold pressure transitions; Racepak Dash Option
18 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 MAP Enrichment: To assist in manifold pressure transitions the Atomic EFI offers a MAP enrichment feature. This function adds fuel based on M...
Page 19 - HANDHELD DISPLAY OPTIONS; Display Setup: The display Setup controls the look; Figure 29 Monitor Display Selections
INSTALLATION INSTRUCTIONS 19 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 Before attempting to start the motor, run through the pre-start check list to ensure a safe and successful start. • Double-check all wiring • Power and...
Page 20 - DIAGNOSTICS; CODE NAME
20 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 DIAGNOSTICS There is a self-diagnosing system built into the Atomic EFI. Each covered parameter can show a status in one of three ways (Fig)....
Page 21 - CLEAR FLOOD
INSTALLATION INSTRUCTIONS 21 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 CLEAR FLOOD If a flood condition occurs, turn the key on then press the accelerator to wide-open throttle. This tells the ECU to turn off the injectors...
Page 22 - TECH NOTES
22 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 TECH NOTES _________________________________________________________________________________________________________________________ ________...
Page 24 - INSTALLATION INSTRUCTIONS; Limited Warranty; or consequential damages.; Service; When returning MSD components for warranty service,; Proof of Purchase must be supplied for verification. After; All returns must have a Return Material Authorization (RMA) number; issued to them before; M S D; Created
24 INSTALLATION INSTRUCTIONS Limited Warranty M SD warrants this product to be free from defects in material and workmanship under its intended normal use*, when properly installed and purchased from an authorized MSD dealer, for a period of one year from the date of the original purchase. This warr...