Mitsubishi Lancer Evolution-VI, Руководство по ремонту, Страница: 167 / 447

MPI –
Troubleshooting
13-56
DATA LIST REFERENCE TABLE
Item
No. Inspection
item Inspection contents Normal condition Inspection
procedure
No. Reference
page
11 Oxygen
sensor Engine:After having
warmed up
Air/fuel mixture is
made leaner when de-
When at 4,000 r/min,
engine is suddenly
decelerated 200 mV or less Procedure
No. 31 13-42
made leaner when de-
celerating, and is made
richer when racing.
When engine is
suddenly raced 600 – 1,000 mV
Engine:After having
warmed up
The oxygen sensor
signal is used to check
Engine is idling 400 mV or less
(Changes)
signal is used to check
the air/fuel mixture
ratio, and control
condition is also
checked by the ECU.
2,500 r/min
600 – 1,000 mV
12 Air flow
sensor*
D
Engine coolant
temperature: 80 – Engine is idling 17 – 43 Hz – –
sensor
<EVOLU-
TION-IV> temperature: 80
95
_
C
D
Lamps, electric
li f d ll
2,500 r/min 46 – 86 Hz
p
cooling fan and all
accessories: OFF
D
Transmission:
Neutral (A/T:
P range)
Engine is raced Frequency
increases in
response to
racing
12 Air flow
sensor*
D
Engine coolant
temperature: 80 – Engine is idling 12 – 38 Hz – –
sensor
<EVOLU-
TION-V, VI> temperature: 80
95
_
C
D
Lamps, electric
li f d ll
2,500 r/min 36 – 76 Hz
p
cooling fan and all
accessories: OFF
D
Transmission:
Neutral (A/T:
P range)
Engine is raced Frequency
increases in
response to
racing
13 Intake air
temperature
sensor Ignition switch: ON or
with engine running When intake air
temperature is –20
_
C
–20
_
C Code No.
13 13-9
sensor
When intake air
temperature is 0
_
C
0
_
C
When intake air
temperature is 20
_
C
20
_
C
When intake air
temperature is 40
_
C
40
_
C
When intake air
temperature is 80
_
C
80
_
C
NOTE
*:
In a new vehicle [driven approximately 500 km or less], the air flow sensor output frequency is sometimes
10% higher than the standard frequency.