Vanos S54B32

[ST205]

Hi all,

 

We are dealing with a small problem with the calibration of a S54B32 Engine (bmw)

We have the engine running (cam / crank sensors working)

But the In/Ex vanos don't show any sign of following the target tables.

The vanos only responds with Aux1 /Aux2 test manually.

Cam angles are determined using the calibrate function.

We’ve rechecked all vanos related wiring but could not find any error untill now..

 

Ecu:                                       Vanos: 

Aux1     -Int Retard          (Pin 1)

                12V                   (Pin 2)

Aux2     -Int Advance      (Pin 3)

Aux3     -Exh Retard        (Pin 4)

                12V                   (Pin 5)

Aux4     -Exh Advance    (Pin 6)

 

(Diodes are removed as per the help file and 12V is supplied instead of Ground)

Can anybody confirm this or point us in the right direction?

Attached:

Trigger Scope Idle
Ecu Program
Log-File

Thanks in advance!

 

s54b32 vanos.llgx S54B32.pclx

S54B32 Scope Idle.llgx

[Vaughan]

I can't seem to open that trigger scope, does that file open for you?

Given the Aux 2 being 100% duty seemed to advance the cam are you sure you have the outputs wired the correct way around/have the bleed and pressure settings set to the outputs the wrong way around?

[Adamw]

The pressure solenoid on the intake should be Aux 2 (moves in the advance direction when pressurised).  Bleed solenoid should be aux 1. 

 

The exhaust cam solenoids are set up correct I think, but it can only move in the retard direction from the home position so the numbers in your exhaust target table need to be negative values.  ie -25 is 25deg retarded from home position.  +20 would be 20deg advanced from the home position.