TABLE OF CONTENTS:
1.0 INTRODUCTION ...................................................................................................................3
2.0 WARNINGS, NOTES, AND NOTICES ..................................................................................3
3.0 PARTS IDENTIFICATION .....................................................................................................4
4.0 ADDITIONAL ITEMS REQUIRED FOR INSTALLATION .....................................................6
5.0 TOOLS REQUIRED FOR INSTALLATION...........................................................................6
6.0 SYSTEM OVERVIEW............................................................................................................7
7.0 REMOVAL OF EXISTING FUEL SYSTEM ...........................................................................7
8.0 INSTALLATION OF THE MARINE PRO-JECTION FUEL SYSTEM ....................................8
8.1 Adapter Plate Installation ....................................................................................................8
8.1.1 Square Flange Manifolds ..............................................................................................8
8.1.2 Universal and Spread Bore Manifolds...........................................................................9
8.2 Throttle Body Installation ..................................................................................................10
8.3 Throttle Connections.........................................................................................................10
8.4 Fuel Pump Installation ......................................................................................................11
8.5 Fuel Pump and Throttle Body Filter ..................................................................................11
8.6 Return Line Installation .....................................................................................................12
8.7 Inlet Fuel Line Installation .................................................................................................13
8.7.1 Installation with Fuel Return Line to Fuel Tank ...........................................................13
8.7.2 Installation with Fuel Return Line to Electric Pump .....................................................13
8.8 Coolant Temperature Sensor............................................................................................14
9.0 CLOSED LOOP INSTALLATION AND CONNECTION (OPTIONAL):...............................14
10.0 MOUNTING THE ELECTRONIC CONTROL UNIT (ECU):...............................................15
11.0 ENGINE WIRING HARNESS ............................................................................................16
12.0 ELECTRICAL CONNECTIONS.........................................................................................17
13.0 FINAL CONNECTIONS.....................................................................................................18
14.0 OPERATIONAL OVERVIEW OF THE DIGITAL ECU ......................................................18
14.1 Main ................................................................................................................................19
14.2 Idle..................................................................................................................................19
14.3 High RPM .......................................................................................................................20
14.4 ACCEL Pump .................................................................................................................20
14.5 Choke .............................................................................................................................20
15.0 BEFORE STARTING THE ENGINE..................................................................................20
16.0 SETTING THE MECHANICAL IDLE .................................................................................20
17.0 SETTING THE THROTTLE POSITION SENSOR (TPS)...................................................21
18.0 TUNING THE DIGITAL ECU FOR PERFORMANCE .......................................................22
18.1 Tuning the Main ..............................................................................................................22
18.2 Tuning the Idle ................................................................................................................22
18.3 Tuning the ACCEL ..........................................................................................................23
18.4 Tuning the High RPM .....................................................................................................23
18.5 Tuning the Choke ...........................................................................................................23
19.0 MAINTENANCE AND STORAGE .....................................................................................23
20.0 TROUBLESHOOTING AND COMPONENT TESTING .....................................................24
20.1 Adjusting the Fuel Pressure............................................................................................26
20.2 Testing the Coolant Temperature Sensor .......................................................................26
20.3 Testing the Throttle Position Sensor...............................................................................27
20.4 Testing the Oxygen Sensor (if equipped) .......................................................................28
