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