Briggs & Stratton BIG BLOCK EFI, Repair Manual

Page: 96 / 142

92 Section 4: Symptoms
Step Action Yes No
1
Perform OBD System Check.
Are any DTCs found?
Go to applicable
DTC Table.
Go to step 2.
2
Perform a careful visual check. *
Is a problem found?
Repair Go to step 3.
3
Verify fuel in tank(s).
Is there insuffi cient fuel in tank(s)?
Add fuel. Go to step 4.
4
Check fuel shut off valve, if equipped.
Is fuel shut off valve closed?
Open fuel
shut off valve.
Go to step 5.
5
Check the following fuel system components for
dirt, water, or other contaminants.
• Fuel tanks
• Fuel fi lter
• Fuel lines
• Fuel pumps
Is a problem found?
Repair Go to step 6.
6
Verify that fuel pressure is 38-43 psi (262-296
kPa). See page 104 for test procedure.
Is a problem found?
Repair Go to step 7.
7
Verify safety interrupt Is NOT active or faulty.
Is a problem found?
Repair Go to step 8.
8
Check battery as follows:
• Look for loose or corroded terminals.
• Verify battery voltage is 12.2-13.5 volts.
Is a problem found?
Repair Go to step 9.
9
Verify that each cylinder is getting spark. See
Intek V-Twin Cylinder OHV Repair Manual.
Is a problem found?
Repair Go to step 10.
10
Verify ECM powers up. See page 14 for test
procedure.
Is a problem found?
Repair Go to step 11.
Engine Cranks But Does Not Start
(Page 1 of 2)
*
NOTE: Verify that the fuel pump primes for approximately two seconds when the ECM is powered up. If fuel pump primes for
only 1/2 second, then the Safety Circuit is the likely problem.