Idle Air Control (IAC)

DS Code:1604


AUTRON:18022
Bosch:F00099M187
DPL:808187
Delphi:ICD00124
E-Klass:EMP187
GM:93214071
GM:96214071
GM:94700309
GM:17113196
GM:17108187
LP:608187608
MEAT & DORIA:84041
MTE:7450
MTE:7448
Marelli:08187
Marelli:40397402
Marelli:C2547
VDO:C95166
VDO:AT08187R

Manufacturer	Model	Engine	Fuel	Year	Note
Fiat	Palio	1.8 4Cil 8v	Flex	04 >	MPI
Fiat	Strada	1.8 4Cil 8v	Flex	04 >	MPI
GM	Blazer	2.2 4Cil 8v	Gasoline	96 >
GM	Celta	1.0 4Cil 8v	Gasoline	01 > 09
GM	Corsa	1.0 4Cil 16v	Gasoline	02 > 05
GM	Corsa	1.0 4Cil 8v	Flex	05 > 09
GM	Corsa	1.6 4Cil 16v	Gasoline	02 > 08
GM	Corsa	1.6 4Cil 8v	Gasoline	02 > 08
GM	Corsa	1.8 4Cil 8v	Flex	04 > 09
GM	Meriva	1.8 4Cil 16v	Gasoline	03 > 04
GM	Meriva	1.8 4Cil 8v	Flex	05 > 09
GM	Meriva	1.8 4Cil 8v	Gasoline	03 > 04
GM	Montana	1.4 4Cil 8v	Flex	04 > 08
GM	Montana	1.8 4Cil 8v	Flex	04 > 09
GM	Prisma	1.4 4Cil 8v	Flex	07 > 09
GM	S10	2.2 4Cil 8v	Gasoline	96 >

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.