Wastegate actuator adaption CXEB

[mmi]

Thanks,
appreciate your sharing of the logs.

Looks like there is less than half of the log contains meaningful data.

From 20 to 100 seconds​

Above :
Actual position follows specified nicely. Now especially at 79...83 seconds looks good/normal. Have you done something? Any fault codes now?

From 100 to 180 seconds​

 

[Deansie]

Thanks,
appreciate your sharing of the logs.

Looks like there is less than half of the log contains meaningful data.
View attachment 264059

View attachment 264073

From 20 to 100 seconds​

View attachment 264067


View attachment 264068
Above :
Actual position follows specified nicely. Now especially at 79...83 seconds looks good/normal. Have you done something? Any fault codes now?


View attachment 264069

From 100 to 180 seconds​

View attachment 264070

View attachment 264071

View attachment 264072

Thank you very much!

No, I haven't done anything other then driving it as usual. A bit of a stretch, but i figured as long as there are no fault codes popping up it might just sort it self out with the tooth of time. And to be fair, looking at the charts above it might have worked? Although, looking at the charge pressure specified and calc actual, it still looks a bit wonky?

 

[mmi]

Although, looking at the charge pressure specified and calc actual, it still looks a bit wonky?

Well, one thing is that for some reason the ECU produces only 0.1 bar resolution for the "Pressure after throttle valve, calculated". Thus quite "rough" curves.

Also as there is no actual sensor after throttle valve I would like to propose instead to use the "Charge pressure BEFORE throttle valve, calculated actual value" (a sensor in the manifold). Possibly even better would be to use "Charge air cooler inlet, press sensor 1 bank 1, raw value" - a sensor in clean, fresh airstream - well before exhaust gas recirculation.

 

[Deansie]

Well, one thing is that for some reason the ECU produces only 0.1 bar resolution for the "Pressure after throttle valve, calculated". Thus quite "rough" curves.

Also as there is no actual sensor after throttle valve I would like to propose instead to use the "Charge pressure BEFORE throttle valve, calculated actual value" (a sensor in the manifold). Possibly even better would be to use "Charge air cooler inlet, press sensor 1 bank 1, raw value - a sensor in clean, fresh airstream - well before exhaust gas recirculation.

Alright! Will give this a try tomorrow.

 

[Deansie]

A little update:

The turbo remanufacturer shipped me the wrong actuator and made a whole hassle about it but will ultimately deliver the right piece by the end of this week. Will update asap if it did any difference to the van.