Idle Air Control (IAC)

DS Code:1646


MTE:7489
PONTIAC:17111809
PONTIAC:17111811
PONTIAC:17112203

Manufacturer	Model	Engine	Fuel	Year
Buick	Century	2.8 V6 12v	Gasoline	86 > 05
Buick	Regal	2.8 V6 12v	Gasoline	88 > 96
Buick	Rendezvous	3.4 V6 12v	Gasoline	02 > 05
Buick	Skylark	3.1 V6 12v	Gasoline	94 > 98
Cadillac	Cimarron	2.8 V6 12v	Gasoline	87 > 88
GM	Beretta	2.8 V6 12v	Gasoline	87 > 96
GM	Camaro	3.4 V6 12v	Gasoline	93 > 95
GM	Cavalier	2.8 V6 12v	Gasoline	87 > 94
GM	Celebrity	2.8 V6 12v	Gasoline	87 > 90
GM	Corsica	2.8 V6 12v	Gasoline	87 > 96
GM	Corvette	5.7 V8 16v	Gasoline	90 > 95
GM	Impala	4.8 V8 16v	Gasoline	00 > 05
GM	Lumina APV	3.1 V6 12v	Gasoline	96 >
GM	Lumina	3.1 V6 12v	Gasoline	90 > 01
GM	Malibu	2.4 4Cil 16v	Gasoline	97 > 03
GM	Monte Carlo	3.1 V6 12v	Gasoline	95 > 05
GM	Venture	3.4 V6 12v	Gasoline	97 > 05
Oldsmobile	Achieva	3.1 V6 12v	Gasoline	94 > 98
Oldsmobile	Alero	2.4 4Cil 16v	Gasoline	99 > 04
Oldsmobile	Cutlass Ciera	2.8 V6 12v	Gasoline	87 > 89
Oldsmobile	Cutlass Cruiser	2.8 V6 12v	Gasoline	87 > 89
Oldsmobile	Cutlass Supreme	2.8 V6 12v	Gasoline	88 > 97
Oldsmobile	Cutlass	3.1 V6 12v	Gasoline	95 > 04
Oldsmobile	Firenza	2.8 V6 12v	Gasoline	87 >
Oldsmobile	Silhouette	3.4 V6 12v	Gasoline	96 > 04
Pontiac	6000	2.8 V6 12v	Gasoline	87 > 91
Pontiac	Aztek	3.4 V6 12v	Gasoline	01 > 05
Pontiac	Firebird	3.4 V6 12v	Gasoline	93 > 95
Pontiac	Grand AM	3.0 4Cil 16v	Gasoline	94 > 05
Pontiac	Grand Prix	2.8 V6 12v	Gasoline	88 > 03
Pontiac	Montana	3.4 V6 12v	Gasoline	99 > 05
Pontiac	Sunbird	3.1 V6 12v	Gasoline	91 > 94
Pontiac	Trans Sport	3.4 V6 12v	Gasoline	96 > 98

Details Idle Air Control (IAC)

The idle actuator, also known as Idle Air Control – IAC and stepper motor, controls the rotation of the engine under idle conditions.

This “valve” is controlled by the Electronic Control Unit (ECU) and has a stepper motor that, depending on the engine load, increases or decreases the passage of air to the intake manifold through a deviation called bypass.

Under idle conditions, the position of the obturator is calculated based on the voltage signals, the engine coolant temperature (ECT), and the manifold absolute pressure (MAP).

The idle actuator is found in the throttle body, usually fixed by two screws or snapped-in.