Poor Idle Quality

DIES AT STOPS
^ Throttle Valve Adjustment/Cleaning
^ Throttle Potentiometer
^ Auxiliary Air Valve
^ Coolant Temperature Sensor
^ Vacuum line to EFI ECM

IDLES ROUGH
^ Clogged Injector(s)
^ Ignition Miss-fire
^ Intake Air Leak
^ Loose Fuel System Grounds
^ Vacuum line to EFI ECM

IDLES TOO HIGH
^ Throttle Valve Adjustment
^ Auxiliary Air Valve
^ Throttle Cable Adjustment
^ Throttle Potentiometer

IDLES TOO LOW
^ Auxiliary Air Valve
^ Throttle Potentiometer

IDLE SURGES
^ Throttle Valve Adjustment
^ Throttle Potentiometer
^ Vacuum line to EFI ECM