MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-897
HO2S
BANK1
S1
A1
*6
Heated
oxygen sensor
(front)
Engine:
Warming up
(air/fuel mixture
is made leaner
when
decelerating,
and is made
richer when
revving.)
When the engine
at 4,000 r/min,
decelerate
suddenly
0.2 volt or less Code No.
P0130, P0131,
P0132, P0133,
P0134
P.13A-214
,
P.13A-233
,
P.13A-241
,
P.13A-247
,
P.13A-253
When engine is
suddenly
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 ECM
<M/T> or PCM
<A/T>)
Engine is idling
Voltage
changes
repeatedly
between 0.4
volt or less and
0.6
− 1 volt.
2,500 r/min
HO2S
BANK2
S2
59
Heated
oxygen sensor
(rear)
Engine:
warming up
Revving
0 and 600
−
1,000 millivolts
alternate.
Code No.
P0136, P0137,
P0138, P0139
P.13A-277
,
P.13A-294
,
P.13A-302
,
P.13A-308
HO2S
BANK1
S2
A2
*6
Heated
oxygen sensor
(rear)
Engine:
warming up
Revving
0 and 0.6
− 1
volt alternate.
Code No.
P0136, P0137,
P0138, P0139
P.13A-277
,
P.13A-294
,
P.13A-302
,
P.13A-308
MUT-III
SCAN
TOOL
DISPLAY
ITEM
NO.
INSPECTION
ITEM
INSPECTION REQUIREMENT
NORMAL
CONDITION
INSPECTION
PROCEDURE
NO.
REFERENCE
PAGE