MPI <4G9> -
Troubleshooting
13A-154
Item
No.
Reference
page
Inspection
procedure
No.
Normal condition
Inspection contents
Inspection
item
14
Throttle
Ignition switch: ON
Set to idle position
300 - 1,000 mV
Code No. 13A-100
position
sensor
Gradually open
Increases in pro-
portion to throttle
opening angle
P0120
Open fully
4,500 - 5,500 mV
16
Power sup-
ply voltage
Ignition switch: ON
System voltage
Procedure
No. 25
13A-147
18
Cranking
signal
Ignition switch: ON
Engine: Stopped
OFF
Procedure
No. 28
13A-150
signal
(ignition
switch-ST)
Engine: Cranking
ON
No. 28
21
Engine cool-
ant tempera-
ture sensor
Ignition switch: ON or
with engine running
When engine cool-
ant temperature is
-20
_
C
-20
_
C
Code No.
P0115
13A-98
When engine cool-
ant temperature is
0
_
C
0
_
C
When engine cool-
ant temperature is
20
_
C
20
_
C
When engine cool-
ant temperature is
40
_
C
40
_
C
When engine cool-
ant temperature is
80
_
C
80
_
C
22
Crank angle
sensor
D
Engine: Cranking
D
Tachometer:
Connected
Compare the engine
speed readings on
the tachometer and
the MUT-
II
.
Accord
Code No.
P0335
13A-113
D
Engine: Idling
D
Idle
position
switch: ON
When engine cool-
ant temperature is
-20
_
C
1,275 - 1,475 rpm
When engine cool-
ant temperature is
0
_
C
1,225 - 1,425 rpm
When engine cool-
ant temperature is
20
_
C
1,100 - 1,300 rpm
When engine cool-
ant temperature is
40
_
C
950 - 1,150 rpm
When engine cool-
ant temperature is
80
_
C
650 - 850 rpm