FG Boost Control Tuning (missing Parameters)

[Peppy_t]

I think we are all aware that we have some missing boost control parameters, anyone know what they are and can direct Eric to find them?

I have tuned most models now and they generally play ball, except a hand full of FG's which I have been forced to use the Turbo Test DC on most which obviously isn't ideal with such a clever boost controller at our disposal, I recently had a 2011 Man F6 which achieved exactly what was commanded in open and closed loop? I try the exact same approach on any other Fg and they don't want to play, just spiking to 100% DC on the hit of the throttle. I have people moving over from SCT and while I can generally get the car to idle, cruise and pull better then before they lack the response due to not having full control of the boost. Or am I missing something?

I'm happy to work with anyone to get this sorted and deliver customers a quality tune

[IH8TOADS]

The SCT tunes are probably in Open Loop. Check.

If you are getting 100% DC and closed loop is enabled, the PCM thinks it's massively under-boosted. Make sure your desired boost reflects the turbocharger you're using.

Take a decent log with all the boost control DMR's etc.

[Peppy_t]

Thanks toads, you were right, it thought it was under boosted but not because of the desired table, it was because I raised the under boost threshold to 10psi. It's now achieving desired every time

[reubone]

did lowering the underboost threshold fix the not getting the commanded boost issue?