MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-845
HO2S
BANK1
S1
A1*
6
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 volt or
less
Code No.
P0130,
P0131,
P0132,
P0133,
P0134
P.13A-178
,
P.13A-230
,
P.13A-198
,
P.13A-203
,
P.13A-209
When engine
is suddenly
raced.
0.6
− 1 volt
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 volt or
less and
0.6
− 1 volt.
2,500 r/min
HO2S
BANK1
S2
69
Heated
oxygen sensor
bank 1, sensor
2 (right rear)
Engine:
warming up
Revving
0 and 600
− 1,000
millivolts
alternate.
Code No.
P0136,
P0137,
P0138,
P0139
P.13A-230
,
P.13A-243
,
P.13A-252
,
P.13A-258
HO2S
BANK1
S2
A2*
6
Heated
oxygen sensor
bank 1, sensor
2 (right rear)
Engine:
warming up
Revving
0 and 0.6
−
1 volt
alternate.
Code No.
P0136,
P0137,
P0138,
P0139
P.13A-230
,
P.13A-243
,
P.13A-252
,
P.13A-258
MUT-III
SCAN
TOOL
DISPLAY
ITEM
NO.
INSPECTION
ITEM
INSPECTION REQUIREMENT
NORMAL
CONDITION
INSPECTION
PROCEDURE
NO.
REFERENCE
PAGE