Summit L4-1468cc 1.5L SOHC (1989)
(10)
If the engine speed does not conform to the standard value, adjust it with the idle speed control adjusting screw.
Caution When adjusting the idle speed control, use a hexagon wrench whenever possible.
(11)
Turn in the fixed SAS until the engine speed rises. Then back out the fixed SAS until the "touch point" where the engine speed does not fall
any longer is found. Back out the fixed SAS an additional half a turn from the touch point.
(12)
Stop the engine.
(13)
Set the ignition switch at ON (do not start the engine) and check that the output voltage from the throttle position sensor is as specified.
Standard value:
0.48 - 0.52V
(14)
If it is out of specification, adjust by loosening the throttle position sensor mounting screws and rotating the throttle position sensor. After
adjustment, tighten the screws firmly.
NOTE Clockwise rotation of the throttle position sensor increases the output voltage.
(15)
Set the ignition switch at OFF.
(16)
Adjust the free play of the accelerator cable.
(17)
Reconnect the connectors of the idle speed control servo.
(18)
Remove the voltmeter.
(19)
Start the engine and check that the engine is running at the curb idle speed.
Curb idle speed:
750 +/- 100 rpm - COLT, SUMMIT
700 +/- 100 rpm - COLT STATION WAGON, COLT VISTA
(20)
Set the ignition switch at OFF, disconnect the negative battery cable, and reconnect it more than 10 seconds later. (By doing so, the memory
storing the diagnosis data during the idle speed control adjustment is cleared.)
(21)
Restart the engine, let it run at idle for about 5 minutes, and check that the engine is running in good idle quality.
TSB # 14-55-89 November 27, 1989
DOHC-Engine
PUBLICATION NO. 81-270-9011 PAGE 14-38
