Ignition timing is controlled by the electronic control ignition timing system.
The standard reference ignition timing data for the engine
operating conditions are pre-programmed in the memory of the ECM (Engine
Control Module).
The engine operating conditions (speed, load, warm-up
condition, etc.) are detected by the various sensors. Based on these
sensor signals and the ignition timing data, signals to interrupt the
primary current are sent to the ECM.
The ignition coil is activated, and timing is controlled.
Other information:
Description
The valve body is essential to automatic transmission control
and consists of various valves used to control the oil feed from the
oil pump. Specifically, these valves consist of pressure regulator
valves, oil redirection valves, shift valves, and manual valves. The
valve body ...
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the PCSV connector.
3.
Measure resistance between the PCSV terminals 1 and 2.
4.
Check that the resistance is within the specification.
Specification: Refer to “Specification”
Removal
1.
Turn the ignition switc ...