MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-16
NOTE: *1 : Minimum value: The test fails if test value is less than this value.
NOTE: *2 : Maximum value: The test fails if test value is greater than this value.
08
Evaporation
leak monitor
(Very small
leak)
After PCM vacuumizes the fuel tank
and the fuel line and then the
specified time is passed, PCM
monitors the leak of fuel
evaporation gas through the fuel
tank differential pressure sensor to
check the reduction of vacuum in
the fuel tank.
EVAP Leak Mon. 0.5
mm Pressure Value
Test Result and Limit
Value (max.) kPa
× 0.032 kPa
09
Heated oxygen
sensor monitor
(Rich/Lean
Switching)
(Bank 1 Sensor
1)
PCM monitors the deteriorated
condition of the heated oxygen
sensor by checking the lean/rich
switching frequency of the heated
oxygen sensor.
HO2S B1 SENSOR 1
Rich/Lean Switching
Count
Test Result and Limit
Value (min.)
×1 count
0A
Heated oxygen
sensor monitor
(Rich/Lean
Switching)
(Bank 2 Sensor
1)
PCM monitors the deteriorated
condition of the heated oxygen
sensor by checking the lean/rich
Switching frequency of the heater
oxygen sensor.
HO2S B2 SENSOR 1
Rich/Lean Switching
Count
Test Result and Limit
Value (min.)
×1 count
0B
Heated oxygen
sensor monitor
(Voltage) (Bank
1 Sensor 2)
PCM checks the output voltage of
the heated oxygen sensor (rear) in
order to monitor whether the heated
oxygen sensor output is stuck.
HO2S B1 SENSOR2
Change in Volt
Test Result and Limit
Value (min.)
× 19.5mV
0C
Heated oxygen
sensor monitor
(Voltage) (Bank
2 Sensor 2)
PCM checks the output voltage of
the heated oxygen sensor (rear) in
order to monitor whether the heated
oxygen sensor output is stuck.
HO2S B2 SENSOR 2
Change in Volt
Test Result and Limit
Value (min.)
× 19.5mV
TEST
ID
MONITORING
ITEM
SIMPLE TECHNICAL
DESCRIPTION
INDICATION OF SCAN
TOOL
CONVERSION
COEFFICIENT IN
USING
GENERAL SCAN
TOOL