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Component Locator > < Idle Speed Adjuster, Remove and Install

Omega B

 

 

Idle Speed Adjuster

 

The idle speed adjuster is flanged directly to the throttle body.

This means that the previously used hose connections are not required.

 

The idle speed adjuster is actuated by the Motronic M 1.5.4 via two leads with a variable pulse ratio.

 

1     Idle speed adjuster

 

 

Object Number: 2387412 Size: DEFAULT

 

 

It also has the following properties:

 

-      low air leak amount (2.5 m³ / h)

-      high maximum air throughput (50 m³

-      low dependence of idle speed adjuster

       characteristic curve on voltage and temperature

-      no separation of electric and pneumatic

       parts in idle speed adjuster, therefore

       improved cooling of components

-      inverse air flow, therefore improved

       resistance to dirt

 

1     Drive

2     Pneumatic housing

3     Adjuster element

 

 

Object Number: 2387413 Size: DEFAULT

 

 

Function:

 

The idle speed adjuster controls the air throughput when the throttle valve is closed (engine idle speed), depending on the pulse ratio applied by the Motronic M 1.5.4.

 

·    Service

 

If the idle speed adjuster or the actuation leads between the idle speed adjuster and the control unit are defective, the engine telltale illuminates and a trouble code is stored in the control unit:

 

-      Trouble code 56: idle speed adjuster voltage too low.

-      Trouble code 57: idle speed adjuster voltage too high.

 

The idle speed adjuster can also be checked using the TECH 1 actuator diagnosis.

 

Component Locator > < Idle Speed Adjuster, Remove and Install