S&S Cycle Serial Delphi Style VFI (Variable Fuel Injection) Module and ProTune II Software - Manual (Page 2)

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NOTE: All brand names, trademarks or registered trademarks mentioned in these instructions are the property of their respective holders and are used in
a reference only capacity.
S&S Fuel Injection is not compatible with E85 fuel. Use of E85 fuel may cause your engine to run poorly and/or damage system
components.
Use the supplied cable to connect the VFI module to your PC. Use of any other cable may result in damage to the PC. You can use an
additional cable to supplement length, but the supplied S&S cable MUST be connected to the module.
TABLE OF CONTENTS
Introduction .............................................................................................2
Kit Contents ..............................................................................................2
Additional Parts Required ...................................................................3
Optional Accessories ............................................................................3
Installation ................................................................................................3
VFI Module Installation .................................................................3
Stock ECM Removal .................................................................3
Wiring Harness Preparation .................................................3
Module Installation .................................................................5
ProTune II Software Installation ........................................................6
Loading a Calibration ...........................................................................8
Basic Communication Troubleshooting ........................................9
ProTune II Diagnostics ..........................................................................9
Check Engine Lamp Diagnostics......................................................9
Basic Troubleshooting and Tuning Suggestions ........................10
No Start/Run Condition ................................................................10
Map Merging ....................................................................................10
Stepper Motor Calibration ..........................................................11
Starting ...............................................................................................11
USB to Serial Converter Information .......................................12
Identifying COM port of PC .........................................................13
INTRODUCTION
The S&S VFI (Variable Fuel Injection) module replaces the stock fuel injection module and works with the stock sensors and injectors. The Serial
Delphi® Style module works with all 2001 through 2003 big twin EFI motorcycles using the 36-pin Delphi system.
This instruction sheet focuses on the installation of Serial Delphi® Style VFI module (Kit PN 55-5034A).
KIT CONTENTS
• VFI Module – Also referred to as an ECM (Engine/Electronic Control Module)
• S&S Modified Serial Cable (3-Pin), (PN 55-5009)
• ProTune II Software CD, (PN 55-5070)
• Serial Port Cover and Hardware Packet, (PN 55-5034P)
• S&S VFI Sub-Harness, (PN 55-1082)
WARNING
Picture 1
CAUTION