Buell 2007 LIGHTNING Service Manual

4-50 2007 Buell Lightning: Fuel System
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Code 13 Test (Part 2 of 3)
NO.
0.0-0.4 volts.
NO.
0.6-1.0 volts.
NO.
Slow or no change.
Check continuity
between Pin 4 [11]
(gray) and [137]
(V/GY). Continuity
present?
Replace O2
sensor. See
4.33 OXYGEN
SENSOR.
YES
Repair open
on V/GY wire.
NO
Perform 4.13 FUEL
PRESSURE TEST.
Pressure too high?
NO
Perform 4.13 FUEL
PRESSURE TEST.
Pressure too low?
YES
Check for
injectors stuck
open. See 4.22
TROUBLE CODES
23 AND 32. Retest.
NOYES
Check for restricted
fuel filter or fuel line.
Restriction
present?
NO
Check for air leaks
at induction
module. Air leak
present?
YES
Replace fuel line
or filter.
NO
Fuel injectors may be
dirty. See Fuel Injectors
under 4.42 THROTTLE
BODY.
YES
Repair.
Go to Code 13 Test
(Part 3 of 3).
STOP
YES
Repair low pres-
sure problem. See
4.13 FUEL PRES-
SURE TEST.
Replace fuel pump.
See 4.39 FUEL
PUMP.
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).
Continued from Code 13 Test (Part 1 of 3).
Turn ignition OFF and reconnect O2 sensor. Turn ignition ON
and start engine. Allow engine to reach operating temperature.
With engine idling, does voltage quickly fluctuate between 0.1-
0.8 volts?

Buell 2007 LIGHTNING Specifications

General

Year	2007
Manufacturer	Buell
Model	Lightning
Category	Motorcycle
Displacement	1203 cc
Bore x Stroke	88.9 mm x 96.8 mm
Compression Ratio	10.0:1
Fuel System	Electronic fuel injection
Transmission	5-speed
Final Drive	Belt
Rear Suspension	Showa shock absorber
Rear Brakes	Single disc, 1-piston caliper
Engine Type	V-Twin
Ignition	Digital
Front Suspension	Showa inverted fork
Front Brakes	Single disc, 6-piston caliper
Front Tire	120/70 ZR17
Rear Tire	180/55 ZR17
Wheelbase	52.0 inches
Seat Height	30.1 inches
Dry Weight	395 lbs
Fuel Capacity	14.5 liters