Section 02 TROUBLESHOOTING
Subsection 01 (TROUBLESHOOTING CHART)
ENGINE LACKS ACCELERATION OR POWER
OTHER OBSERVATION POSSIBLE CAUSE REMEDY
Weak spark
Check/replace, refer to ELECTRICAL
SYSTEM
Carburetion, jetting too rich/lean
(
carburetor models
)
Check/replace, refer to FUEL SYSTEM
Throttle does not open fully
Check/readjust, refer to FUEL SYSTEM or
ENGINE MANAGEMENT
Low compression
Check/repair, refer to the appropriate
ENGINE SHOP MANUAL
Water in fuel
Check/siphon/replace
Debris in carburetor needle valve
(
carburetor models
)
Check/clean, refer to FUEL SYSTEM
Impeller leading edge damaged
Check/replace, refer to PROPULSION
SYSTEM
Poor fuel quality
Siphon then refill with fresh fuel
Clogged fuel injectors
(
RFI models
)
Remove and clean fuel injectors
Low fuel pressure
(
RFI models
)
Check fuel line and fuel pump pressure
Incorrect throttle position sensor (TPS)
adjustment (
RFI models
)
Check and adjust TPS, refer to ENGINE
MANAGEMENT
Overheated engine See ENGINE OVERHEATS in this chart
RAVE valve does not open
(
if so equipped
)
Check, refer to the appropriate ENGINE
SHOP MANUAL
Engine revs lower than
its maximum operational
RPM
Limp home mode activated
(
RFI models
)
Refer to ENGINE MANAGEMENT
Peak performance is
delayed until higher
RPM range is reached
RAVE valve is stuck opened
(
if so equipped
)
Check, refer to the appropriate ENGINE
SHOP MANUAL
32 smr2005-046
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