TROUBLESHOOTING
When the malfunction code is not confirmed in the diagnostic code check and the problem still
cannot be confirmed in the basic inspection, then proceed to this step and perform troublesh–
ooting according to the numbers in the order given in the table below.
Starter runs – engine does
not crank
After accelerator pedal
depressed
Engine stall soon after
starting
After accelerator pedal
released
Muffler explosion
rafter fire
Excessive oil consumption
Hesitation
Poor acceleration
(Vv complete combustion
Throttle Position
Sensor Circuit
Heated Oxygen
Sensor Circuit
Intake Air Temp.
Sensor Circuit
Volume Air Flow
Meter Circuit
Under normal conditions
High engine idle speed
Battery often discharge
Low engine idle speed
Knock Sensor
Circuit
Engine does not crank
Fuel Pressure
Regulator
Idle Speed
Control Valve
Starter keeps running
Engine cranks slowly
During A/C operation
No initial combustion
Engine Coolant
Temp Sensor
Circurt
PNP Signal
Circuit
RPM Signal
Circuit
STA Signal
Circuit
Poor fuel economy
Cold Start
System
A/C Signal
Circuit
When N to D shift
High oil pressure
Incorrect first idle
Engine overcool
Low oil pressure
Engine overheat
Poor drivability
Ignition Circuit
Does not
start
Suspect area
Difficult
to start
Engine stall
Rough idling
Symptom
Cold engine
Fuel Pump
Poor idling
Hot engine
See page
Fuel Lines
injectors
Knocking
Back fire
Surging
EG2–190
EG2–22o
EG2–199
EG2–160
EG2–18$
EG2–190
EG2–193
EG2–192
EG2–202
EG2–193
EG2–212
EG2–247
Others
Misfire
IG–16
IG–16
–ENGINE ENGINE MECHANICAL
EG2–9
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