Troubleshooting
Ignition System
Symptom
Suspect Area
Remedy
Engine will not start or is hard to
start (Cranks OK)
Ignition lock switch
Inspect ignition ...
Variable Intake Solenoid (VIS) Valve
Variable Intake manifold Solenoid (VIS) valve is installed on the intake
manifold. The VIS valve controls the vacuum modulator which activates a valve
in the intake manifold. The ECM opens or ...
Description
Ignition timing is controlled by the electronic control ignition timing
system.
The standard reference ignition timing data for the engine operating conditions
are pre-pro grammed in the ...