hornetball

iTrader: (4)

Looking for a little guidance here. Running a MSPNP 9093. Have modified for a variable TPS. Questions:

1. I've got the new style solenoid valve from DIY Auto Tune. The MSPNP base map default is for the older GM solenoid. The solenoid PWM rate is 19.5Hz. Anyone know if this works for their new solenoid? Here are the defaults in my "Boost Control" window:



2. I was considering using the "IAT Related Boost" function to pull boost based upon IAT as a fail-safe for WI. See window:



The problem is that the control seems to be setup to reduce a closed-loop boost target rather than an open-loop duty cycle. From what I've read in other posts, the EBC for the MSPNP is best used open loop. Anybody had success with the closed loop EBC with MSPNP? I suspect I may be wasting my time with this.

Anyway, thanks for the input.

hornetball

iTrader: (4)

Answered my own question on #1 from the DIY Autotune site (duh!). I guess I just assumed it wouldn't be there since it wasn't in the documentation. Anwer:

"It operates on a frequency of 19.5-40 Hz and is practically a wire-in replacement for the now-discontinued GM EBC Solenoid."

Still looking for guidance on #2.

Ben

iTrader: (33)

IAT related boost is set up for closed loop boost. I don't think I've ever tried it.

MSPNP open loop boost control works very well.

hornetball

iTrader: (4)

That's what I was afraid of. So, anyone ever try closed loop EBC with the MS-1 or MSPNP? From other posts, it seems like closed loop EBC is functional with MS-2+.

Braineack

iTrader: (62)

Closed loop ms1 doesn't work well.

hornetball

iTrader: (4)

Darn. Well, at least now I know . . . .