Cspit24

So I Took the plundge into closed loop boost controll tuning and at this point i belive i have a solid understanding of most of it.
However there is this extreamly odd issue i have been running inot with this Initial duty table
The Y Axis looks to be lableed boost in kpa and the X axis is RPM. Now what is super odd here is that the table will move along rpm but will not chnage with boost pressure
When the car is on it sits at 180ish and when the car is off it sits at the bottom
it moves just fine alog rpm just no boost

i have adached some pictures and my tune as well
currently the table is set to ignore boost rpessure because it dosent work so its just by rpm at this point

18psi

iTrader: (76)

lol ms2 closed loop boost is..................junk

Cspit24

yeah haha seems im running into my ecus limits here
if the feature is there id at least expect it to work XD
is that really just it bad software here?

18psi

iTrader: (76)

as far as I know, yes. I've yet to see a completely and properly operational MS2 closed loop boost control

Cspit24

do you know of a good starting point for info on wiring a non pnp ms3 into a 95 miata?

acedeuce802

iTrader: (1)

trubokitty.com

Matt Cramer

Can you post a data log of what the boost control is doing? This will give everyone more to go on.

Cspit24

Here is my current tune along wiht the data log of what its doing
the tune may be back on open loop for the drive home but the closed loop setings should be there

still i find it really odd that my ecu reads boost presure just fine everywhere but this one tabe lol