Section 02 TROUBLESHOOTING
Subsection 01 (TROUBLESHOOTING CHART)
ENGINE HARD TO START
OTHER OBSERVATION POSSIBLE CAUSE REMEDY
Wrong TPS zero setting (
RFI models
) Refer to ENGINE MANAGEMENT
Throttle cable adjustment
(
RFI models
)
Refer to ENGINE MANAGEMENT
Air lock in fuel rail
(
RFI models
)
Refer to ENGINE MANAGEMENT
Water in fuel reservoir or contaminated
fuel
Flush reservoir and refill with fresh gas
Check cylinder compression
Check for cylinder head leaks
Mechanical engine failure
Check starting system
Spark plug faulty, fouled or worn out Check spark plug condition
Check fuel pump operation. Refer to
FUEL SYSTEM
Low fuel pressure
(
RFI models
)
Check fuel pressure regulator. Refer to
FUEL SYSTEM
Missing shim under CPS (
RFI models
) Refer to COMPONENT ADJUSTMENT,
INSPECTION AND REPLACEMENT
ENGINE STARTS BUT RUNS ONLY AT IDLE SPEED
OTHER OBSERVATION POSSIBLE CAUSE REMEDY
The system is in limp home mode
(
RFI models
)
Refer to ENGINE MANAGEMENT and
check the fault codes
Broken or loose throttle cable
Change/readjust
ENGINE STARTS BUT RUNS ONLY ON ONE CYLINDER (RFI MODELS)
OTHER OBSERVATION POSSIBLE CAUSE REMEDY
In normal conditions engine runs only on
one cylinder at idle after engine warm-up
is completed.
Engine should run on both cylinders with
3 percent or more of throttle opening.
Use the VCK (Vehicle Communication Kit)
with B.U.D.S. software to validate.
28 smr2005-046
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