IA - Inlet Air Control System

^ Remove the air duct and check for oil smudging or oil vapors in the throttle body.

^ Reconnect the air duct.

^ Check throttle body and components for cracks, looseness, or other damage.

^ Without removing the throttle body from engine, check the integrity of vacuum and electrical lines for looseness, pinching, mis-routing, corrosion, or other obvious damage.

^ Check the throttle lever for freedom of movement.

^ Are the throttle body and attachments OK?


YES -- GO to IA6.

NO -- SERVICE or REPLACE the throttle body and/or related components as required.

NOTE: Electronic component troubleshooting is covered at the Computers and Controls Level. Pinpoint Tests