When the engine-ECU is replaced, or when the learning value is initialised, the idling
is not stabilized because the learning value in MPI engine is not completed. In this case, carry
out the learning method for the idling through the following procedures.
LEARNING PROCEDURE
1.Start the engine and carry out the warm-up for the engine coolant temperature to reach
80°C or more. When the engine coolant temperature is 80°C or more, the warm-up is not needed
if the ignition switch is in "ON" position <except vehicles with KOS> (or put the power
supply mode is OFF <vehicles with KOS>) once. 2.Place the ignition switch in the "LOCK" (OFF) position <except vehicles with KOS>
(or put the power supply mode is OFF <vehicles with KOS>) and stop the engine. 3.After 10 seconds or more, start the engine again. 4.For 10 minutes, carry out the idling under the condition shown below and then confirm
the engine has the normal idling.
Transmission: Neutral
Operation in lamps, fan and attachments: Not to be operated
Engine coolant temperature: 80°C or more
note
When the engine stalls during the idling, check the dirtiness (on the throttle valve)
of the throttle body and then perform the service from Procedure 1 again.
INITIALISATION PROCEDURE FOR THROTTLE VALVE CONTROL SERVO
Disconnecting and reconnecting the battery cables causes the throttle valve closed-position
value learned to be erased from the memory. This may prevent the idle speed control from being
executed properly. When the battery cables have been disconnected and reconnected, initialise
the throttle valve control servo in the following manner. 1.Turn the ignition switch to the "ON" position <except vehicles with KOS> (or put
the power supply mode is ON <vehicles with KOS>) and then to the "LOCK" (OFF) position <except vehicles
with KOS> (or put the power supply mode is OFF <vehicles with KOS>). 2.Keep the ignition switch in the "LOCK" (OFF) position <except vehicles with KOS>
(or put the power supply mode is OFF <vehicles with KOS>) for at least 10 seconds.