S50B32 problems with cam sync and more

[teitur]

Hi

Have problems with secondary trigger signal on S50B32 engine.
All three trigger sensors are VR type. 60-2 cranck wheel, 6+1 exhaust and 6 intake wheel.
Can someone please check trigger settings, vanos settings and maps.

[teitur]

Added log 1732. At 1:02 engine stalled with backfire.

Also rough on idle and misfiring at lower rpm. Sometimes idles fine and stable until adding throttle.
Added second log where idle is fine 2:20 - 3:33. After touching pedal

[teitur]

Scope logs. One with rising and other with falling edge secondary trigger.
Which one is correct?

[Karel]

well, it looks like everytime ... shitty old wirring, and noisy mag signal from cams...... try to use some pulldown resistors ...... or make proper wirring harness and it will worl fine.

[Karel]

this is correct Scope

[teitur]

Tried new shielded cable(separated from other wires) on sec trigger with no improvements.
Also changed over cam1 and cam2 sensors, tried another sensor from working car- same results.

Yes cam2 is noisy but thats not main problem at moment.
Small fluctuation may be from wiring but totally messed signal?

Will try resistors tomorrow.
Give me example what wire you recommend for vr sensors?

[Karel]

cca 1k Ohm will be my start something between 500 Ohm and 2k Ohm worked in most cases by me.

[teitur]

Now signals are clean but its another problem. Camsync is working it shows cam signal but its not showing exhaust cam angle. Wiring is okey, sensor is okey(it will show signal normally) then we tryed another ecu --- still same story. We tryed even older version software but still same. It will not just showing exaust cam angle. Vanos is fysically okey and moving normaly. Have anybody ideas what can be wrong?