MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-21
MODE 6 REFERENCE TABLE
The engine control module (ECM) monitors the condition of emission control system.
By selecting MODE 6 using scan tool, Test Result and Limit Value (minimum) *1 or (maximum) *2 about the
main items of emission control system which ECM monitors can be confirmed. The value at the last monitor-
ing is output by ECM as a test result.
ON-BOARD
DIAGNOSTIC
MONITOR ID
STANDARDIZED /
MANUFACTURER
DEFIND TEST ID
MONITORING ITEM
SIMPLE TECHNICAL DESCRIPTION CONVERSION
COEFFICIENT IN USING
GENERAL SCAN TOOL
01
81
Oxygen Sensor Monitor
Bank 1 − Sensor 1
Rich/Lean Switching
frequency
ECM monitors the
deteriorated condition of the
heated oxygen sensor
(front) by checking the
rich/lean switching
frequency of the heated
oxygen sensor (front).
× 1 count
02
08
Oxygen Sensor Monitor
Bank 1 − Sensor 2
Maximum Sensor Voltage
for Test Cycle
ECM checks the output
voltage of the heated
oxygen sensor (rear) in
order to monitor whether
the heated oxygen sensor
(rear) outputs the rich
signal.
× 0.122 mV
82
Oxygen Sensor Monitor
Bank 1 − Sensor 2
Output Voltage change
ECM checks the output
voltage of the heated
oxygen sensor (rear) in
order to monitor whether
the heated oxygen sensor
(rear) output is stuck.
× 0.122 mV
05
Oxygen Sensor Monitor
Bank 1 − Sensor 2
Rich To Lean Sensor
Switch Time
ECM checks the rich to lean
switching time of the heated
oxygen sensor (rear) in
order to monitor the
response of the heated
oxygen sensor (rear).
× 1 msec
88
Oxygen Sensor Monitor
Bank 1 − Sensor 2
Output Voltage drop slope
ECM checks the output
voltage drop slope of the
heated oxygen sensor
(rear) in order to monitor
the response of the heated
oxygen sensor (rear).
× 1 msec
21
83
Catalyst Monitor Bank 1
Frequency ratio between
Front- and Rear-Oxygen
Sensors
ECM monitors the
deterioration of catalyst by
the output frequency ratio
between heated oxygen
sensor (front) and heated
oxygen sensor (rear).
× 0.0039