
4-62
2003 Buell XB9S: Fuel System
HOME
TROUBLE CODES 23 AND 32
4.21
GENERAL
Front Fuel Injector (Code 23)
And Rear Fuel Injector (Code 32)
See
Figure 4-46.
The fuel injectors (1, 4) are solenoids that
allow pressurized fuel into the engine intake tract. The injec-
tors are timed to the engine cycle and are triggered sequen-
tially.
The power for the injectors comes from the ignition relay. The
ignition relay also provides power for fuel pump, ECM and the
ignition coils. The ECM provides the path to ground to trigger
the injectors.
NOTE
Ignition relay failures or wiring harness problems will cause
12 volt power to be lost to both injectors, ignition coils, ECM
and fuel pump.
DIAGNOSTICS
Diagnostic Notes
The reference numbers below correlate with the circled num-
bers on the Code 23/32 flow charts.
1
WARNING
1
WARNING
The gasoline in the fuel supply line downstream of the
fuel pump is under high pressure (49 psi [338 kPa]). To
avoid an uncontrolled discharge or spray of gasoline,
always purge the system of high pressure gas before
servicing the fuel system. Gasoline is extremely flamma-
ble and highly explosive. Inadequate safety precautions
could result in death or serious injury.
1.
Purge fuel line. See
4.38 FUEL PUMP
.
2.
Use HARNESS CONNECTOR TEST KIT (Part No. HD-
41404), purple pin probes and patch cord.
3.
Connect BREAKOUT BOX (Part No. HD-42682) to ECM.
See
4.6 BREAKOUT BOX
.
4.
Use HARNESS CONNECTOR TEST KIT (Part No. HD-
41404), purple pin probes and patch cord to BREAKOUT
BOX (Part No. HD-42682) and gray socket probes and
patch cord to FUEL INJECTOR TEST LAMP (Part No.
HD-34730-2C).
Figure 4-46. Fuel Injectors
Figure 4-47. Fuel Injector Connector
8758
1.
Rear fuel injector
2.
Clip (2)
3.
Fuel rail
4.
Front fuel injector
4
2
1
2
3
8822
1.
Fuel injector connector
2.
Tab
1
2
2
Summary of Contents for 2003XB9S
Page 36: ...D 2 2003 Buell XB9S Appendix D HOME Figure D 2 Rear Brake Systems Top View b1115xbsx ...
Page 37: ...2003 Buell XB9S Appendix D D 3 HOME Figure D 3 Rear Brake Systems Left Side View b1116xcsx ...
Page 45: ...2003 Buell XB9S Appendix D D 11 HOME Figure D 11 Clutch Cable Right Side View b1124xasx ...
Page 48: ...D 14 2003 Buell XB9S Appendix D HOME NOTES ...
Page 50: ......
Page 78: ...1 28 2003 Buell XB9S Maintenance HOME NOTES ...
Page 102: ...1 52 2003 Buell XB9S Maintenance HOME NOTES ...
Page 153: ...2 50 2003 Buell XB9S Chassis HOME NOTES ...
Page 201: ...2 98 2003 Buell XB9S Chassis HOME NOTES ...
Page 203: ......
Page 275: ...3 72 2003 Buell XB9S Engine HOME NOTES ...
Page 307: ...3 104 2003 Buell XB9S Engine HOME NOTES ...
Page 311: ...4 2 2003 Buell XB9S Fuel System HOME NOTES ...
Page 397: ...4 88 2003 Buell XB9S Fuel System HOME NOTES ...
Page 433: ...4 124 2003 Buell XB9S Fuel System HOME NOTES ...
Page 435: ......
Page 457: ...5 22 2003 Buell XB9S Starter HOME NOTES ...
Page 459: ......
Page 485: ...6 26 2003 Buell XB9S Drive Transmission HOME NOTES ...
Page 513: ...6 54 2003 Buell XB9S Drive Transmission HOME NOTES ...
Page 515: ......