MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-955
HO2S
BANK1
S1
39
Heated oxygen
sensor bank 1,
sensor 1 (right
front)
Engine:
Warming up
(Air/fuel
mixture is
made leaner
when
decelerating,
and is made
richer when
revving.)
When the
engine is
running at
4,000 r/min,
decelerate
suddenly.
200 mV or
less
Code No.
P0130,
P0131,
P0132,
P0133,
P0134
P.13A-167
,
P.13A-184
,
P.13A-191
,
P.13A-196
,
P.13A-202
When engine
is suddenly
raced.
600
−
1,000 mV
Engine:
Warming up
(the heated
oxygen sensor
signal is used
to check the
air/fuel mixture
ratio, and
control
condition is
also checked
by the PCM.)
Engine is idling Voltage
changes
repeatedly
between
400 mV or
less and
600
−
1,000 mV.
2500 r/min
HO2S
BANK1
S1
A1*
5
Heated oxygen
sensor bank 1,
sensor 1 (right
front)
Engine:
Warming up
(Air/fuel
mixture is
made leaner
when
decelerating,
and is made
richer when
revving.)
When the
engine is
running at
4,000 r/min,
decelerate
suddenly.
0.2 V or
less
When engine
is suddenly
raced.
0.6
− 1 V
Code No.
P0130,
P0131,
P0132,
P0133,
P0134
P.13A-167
,
P.13A-184
,
P.13A-191
,
P.13A-196
,
P.13A-202
Engine:
Warming up
(the heated
oxygen sensor
signal is used
to check the
air/fuel mixture
ratio, and
control
condition is
also checked
by the PCM.)
Engine is idling Voltage
changes
repeatedly
between
0.4 V or
less and
0.6
− 1 V.
2500 r/min
MUT-III
SCAN
TOOL
DISPLAY
ITEM
NO.
INSPECTION
ITEM
INSPECTION REQUIREMENT
NORMAL
CONDITION
INSPEC-
TION
PROCE-
DURE NO.
REFE-
RENCE
PAGE