Mitsubishi 1989-1993 GALANT Service Manual page 413

FUEL SYSTEM <DOHC>
TROUBLESHOOTING HINTS
Hint 1:
The of the
signals throttle-position sensor are more
important for control of the automatic transaxle than
for control of the engine; shifting "impact shocks"
are produced if there is a malfunction of the
throttle-position sensor.
INSPECTION
Using Scan tool
Function
Data reading 14
HARNESS INSPECTION
connector
Harness side
connector
Inspection conditions
Data display
Sensor de- Ignition switch: ON
tection vol-
tage
Measure the power supply voltage of
the TPS.
. Connector: Disconnected
. Ignition switch: ON
Check for continuity of the ground
circuit of the TPS.
. Connector: Disconnected
tion sensor.
. Throttle position sensor connec-
tor: Disconnected
TSB Revision
Hint 2:
If
the voltage of the throttle-position sensor deviates
from the standard value, check once again after
making the throttle-position sensor adjustment. in
addition, if there are any indications that the fixed
SAS has been moved, adjust the
Throttle valve
Gradually opening
To fully open
fixed SAS.
Standard value
Becomes higher
proportional to
valve opening.
Repair the
harness.
I -
Repair the
harness.