Engine Cranks But Does Not Start - Briggs & Stratton VANGUARD M490000 Repair Manual

Step
1 Perform OBD System Check.
Are any DTCs found?
2 Perform a careful visual check.*
Is a problem found?
3 Verify fuel in tank(s).
Is there insufficient fuel in tank(s)?
4
4 Check fuel shut off valve, if equipped.
Is fuel shut off valve closed?
5 Check the following fuel system components for dirt, water, or
other contaminants.
• Fuel tanks
• Fuel filter
• Fuel lines
• Fuel pumps
Is a problem found?
6 Verify that fuel pressure is 38-43 psi (262-296 kPa). See CHECK/
RELIEVE FUEL SYSTEM PRESSURE in SECTION 5 -
REMOVAL/INSTALLATION.
Is a problem found?
7 Verify safety interrupt is NOT active or faulty, if equipped.
Is a problem found?
8
Check battery as follows:
• Look for loose or corroded terminals.
• Verify battery voltage is 12.2-13.5 volts.
Is a problem found?
9 Verify that each cylinder is getting spark. See Intek V-Twin Cylinder
OHV Repair Manual.
Is a problem found?
10 See VERIFY ECM POWERS UP in SECTION 2 -
TROUBLESHOOTING DTCs.
Is a problem found?
* 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.
96

ENGINE CRANKS BUT DOES NOT START

Action Yes
Go to applicable DTC Table.
Repair
Add fuel.
Open fuel shut off valve.
Repair
Repair
Repair
Repair
Repair
Repair
No
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 7.
Go to step 8.
Go to step 9.
Go to step 10.
Go to step 11.
Continued...