Sea-doo RX Shop Manual page 50

Section 03 TROUBLESHOOTING
Subsection 01 (TROUBLESHOOTING CHART)
ENGINE WILL NOT START (cont'd)
OTHER OBSERVATION
Engine turns over
No spark at spark plugs
03-01-2
POSSIBLE CAUSE
• Faulty component in the fuel injection
system (DI models)
• Engine drowned mode is active
• Low battery voltage
• Low or no fuel pressure (DI models)
• Fuel injectors not working
(DI models)
• Low or no air pressure (DI models)
• Direct injector not working
(DI models)
• No spark at the spark plug
• Defective MPEM
• Defective crankshaft position sensor
• Fuel water-contaminated
• Dirty fuel filter
• Water in engine
• Carburetion (carburetor models)
• Ignition
• Burnt fuel pump fuse (DI models)
• Flooded engine
– Carburetor needle valve stuck open
(carburetor models)
• Internal engine damage
• Sheared flywheel key
• Faulty rev limiter in MPEM
(carburetor models)
• Faulty MPEM
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REMEDY
• Check for fault codes with the VCK
(vehicle communication kit). Refer to
Diagnostic Procedures in ENGINE
MANAGEMENT
• Release throttle lever
• Recharge or replace battery
• Check fuel pump operation
• Check fuel pump pressure output
• Check air/fuel rail
• Check fuel injector operation. Replace
as necessary
• Check output signal from MPEM
• Check air/fuel rail
• Check air compressor system
• Check RAVE valve system for leaks
• Check direct injector operation
• Check output signal from MPEM
• Check spark plugs condition and
replace as necessary
• Check ignition system and repair
• Replace MPEM
• Check operation of CPS and replace if
necessary
• Check/siphon and refill
• Clean/replace
• Check, refer to section MAINTENANCE
• Check, refer to section FUEL SYSTEM
• Check, refer to section ELECTRICAL
SYSTEM
• Check wiring harness and replace fuse
• Check, refer to section FUEL SYSTEM
and COOLING SYSTEM on DI models
• Check, refer to sections ENGINE
• Check timing mark, refer to section
ELECTRICAL SYSTEM
• Replace MPEM
• Replace MPEM
SMR2000-042-03-01.FM