Buell 2007 FIREBOLT Service Manual page 368

HOME
Test 4.11 (Part 2 of 3)
YES
Disconnect fuel injector connector and
4
attach Fuel Injector Test Lamp (HD-34730-
2C). Crank engine. Does lamp flash?
YES
Check engine
compression. See
3.2 ENGINE.
YES
Check ignition coil connections.
Connections OK?
YES
Test spark plug cable resistance.
See 4.15 MISFIRE.
Resistance OK?
YES
Replace spark
plug cables.
Inspect spark plugs.
Good?
YES NO
Replace Replace
ignition coil. spark plugs
Continued from
Check spark plug condition. Replace if fouled. Check
3
spark at both plugs while cranking. Spark present?
NO
Use Breakout Box and test light for the next inspection
1
Front coil: Insert tester between ECM Pin 6 (BK) and ECM
Correct problems
found under 4.22
6
TROUBLE CODES
Rear coil: Insert tester between ECM Pin 7 (BK) and ECM
23 AND 32.
NO
Repair
Disconnect cam position sensor connector
7
[14]. With ignition ON, measure voltage
between Terminal A (+) and Terminal C (-)
of connector [14B]. Is 5 volts present?
NO
STOP
Go to
PART 3 of 3.
Test 4.11 (Part 1 of 3).
Check for battery voltage at Terminal B of
5
coil connector [83] using DVOM. Power
YES
pin 1 (R) of Breakout Box.
(OK).
Pin 1 (R) of Breakout Box.
(OK)
Does test lamp flash when engine is cranked?
Check continuity between ignition coil Termi-
nal A of connector [83] and Breakout Box
Measure resistance between ignition coil
Terminal C and ECM Pin 6 [10B].
Resistance should be less than 1.0 ohm.
YES
YES NO
With ignition OFF, measure resistance between
connector [14] Terminal A and Breakout Box (GY)
Pin 1. Also between connector [14] Terminal C
(BK/W wire) and ECM Pin 7 on connector [11B]. Is
resistance greater than 1.0 ohm?
4.11
YES
Repair open
circuit.
2007 Buell Firebolt: Fuel System
NO
present after key ON?
NO
Open in GY wire
between splice for
fuel pump wire and
ignition coil. Repair
open.
NO
(BK) Pin 7.
Is it?
NO
Poor connection at connector [10B],
[83] or open in harness between
coil and ECM. Repair open.
Check for continuity between Ter-
minal A connector [14B] and
NO
ground. Continuity present?
YES NO
Repair short Replace ECM. See
to ground. 4.30 ELECTRONIC
CONTROL MODULE.
4-27