ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-31
Scan Tool Data
As the data values given below are standard values estimated on the basis of values obtained from the normally
operating vehicles by using a scan tool, use them as reference values. Even when the vehicle is in good condi-
tion, there may be cases where the checked value does not fall within each specified data range. Therefore,
judgment as abnormal should not be made by checking with these data alone.
Also, conditions in the table below that can be checked by the scan tool are those detected by ECM and output
from ECM as commands and there may be cases where the engine or actuator is not operating (in the condi-
tion) as indicated by the scan tool. Be sure to use the timing light to check the ignition timing.
NOTE:
• With the generic scan tool, only star (
✱
) marked data in the table below can be read.
• When checking the data with the engine running at idle or racing, be sure to shift M/T gear to the
neutral gear position and A/T gear to the “Park” position and pull the parking brake fully. Also, if
nothing or “no load” is indicated, turn OFF A/C, all electric loads, P/S and all the other necessary
switches.
SCAN TOOL DATA VEHICLE CONDITION NORMAL CONDITION/
REFERENCE VALUES
✱
COOLANT TEMP
(ENGINE COOLANT
TEMP.)
At specified idle speed after warming up 80 – 100°C, 176 – 212°F
✱
INTAKE AIR TEMP At specified idle speed after warming up –5°C (23°F) + environmental
temp. to 40°C (104°F) +
environmental temp.
✱
ENGINE SPEED At idling with no load after warming up Desired idle speed
±50 RPM
VVT GAP (TARGET-
ACTUAL POSITION)
At specified idle speed after warming up 0 – 3°
INJ PULSE WIDTH
(FUEL INJECTION PULSE
WIDTH)
At specified idle speed with no load after warm-
ing up
2.0 – 4.0 msec.
At 2500 r/min with no load after warming up 2.0 – 3.6 msec.
TP SENSOR VOLT
(THROTTLE POSITION
SENSOR OUTPUT VOLT-
AGE)
Ignition switch ON/
warmed up engine
stopped
Accelerator pedal released 0.5 – 1.0 V
Accelerator pedal
depressed fully
Less than 4.8 V
DESIRED IDLE
(DESIRED IDLE SPEED)
At idling with radiator cooling fan stopped and
all electrical parts turned OFF after warming
up, M/T at neutral
700 RPM
IAC FLOW DUTY
(IDLE AIR CONTROL
FLOW DUTY)
At idling with no load after warming up 5 – 55%
✱
SHORT FT B1
(SHORT TERM FUEL
TRIM)
At specified idle speed after warming up – 20 – +20%
✱
LONG FT B1
(LONG TERM FUEL TRIM)
At specified idle speed after warming up – 20 – +20%
TOTAL FUEL TRIM At specified idle speed after warming up – 35 – +35%
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