Stalls During Deceleration or at Idle

Engine stalls at stops and on deceleration.

POSSIBLE CAUSE ACTION


Idle speed too low ^ Perform minimum Airflow test.

^ SEE Computers and Control Systems/Testing and Inspection/Procedures.


Incorrect initial timing ^ Check base timing.

^ SEE Ignition System / Adjustments.

^ Check CAM timing.


Incorrect spark advance ^ Check spark controls.

^ SEE Ignition System / Specifications


EGR malfunction ^ Check EGR system.


Restricted exhaust system ^ Check Catalytic Converter.


Poor or contaminated fuel ^ Recommend higher grade fuel


Vacuum leak ^ Check vacuum lines and routing.

^ Refer to Vehicle Emission Control Information (VECI) label under hood.

^ Check intake manifold and vacuum components