FUEL SYSTEM
(Programmed
Fuel
Injection)
Adjust the
idle speed if
the
idle
speed differs from
the specified
speed.
IDLE
SPEED:
1,200
±
100
rp
m
Remove the vacuum gauge from the vacuum hoses.
Connect the
each
cylinder vacuum hose to the 5-
way joint.
Reset the ECM self diagnosis
data
(page 5-8).
MAP SENSOR
OUTPUT VOLTAGE INSPECTION
Connect the test harness to
the ECM
(page
5-9).
Measure the voltage at the test harness terminals
{page
5-1 0).
Connection:
A4
(+
)-
816
(-)
STANDARD:
2.7-3.1
V
The MAP sensor output voltage (above)
is
mea-
sured under
the standard atmosphere
(1
atm
=
1,030
hPa).
The MAP
sensor o
utput
voltage is
affected
by
the
distance
above sea level,
because the
output volt-
age
is changed
by
atmosphere.
Check the sea level measurement and be
sure
that
the
measured voltage falls within the specified
value.
C VI
3.5
3.1
3.0
2.7
2.5
2.0
1.5
1.0
0.5
2.5
2.1
0
500
1,000
1..500
2,000
:m
(1.6501
(3.3001
(4
,9501
(6,600)
(feel)
5-77