Please Help! trying to firgure out if setup is correct.

[Rhapsody]

Ya i have a vac line going to megasquirt, the 250kpa map bar enabled, and baro corrections enabled. Ya i think that because im running MS1 as a piggy i still need my maf just cause the stock ecu wants it there. I think my problem might be in my accel enrightments. When i go into the "Acceleration wiziard" option i have it set for tps based and you know how its got that "v/s" bar that shows throttle position. Mine just hardly moves at all unless i reapeadily pump that gas then it will get up about halfway. I wonder if something with that isn't working right cause when im in "tuning" "realtime display" it shows my throttle (%) perfectly.

Oh and on a side note b/c im only boosting 8psi right now + i don't wanna have to tune fuel + Ignition so im doing megasquirt as a piggy. I mean everything works great right now execpt i cant really floor the gas. I have to be more smoother with the gas. I wonder if its just cause i'v never had a turbo car b4 or if cause i really need someone who know megasquirt to help me work the kinks out.

Well im not really that familiar with MS1 but i know that its possible(and thought it was standard for all the MS's..). Check your MS unit itself to see if there is a hole in the case with a spot for a vac line first.

If not you can buy a GM 3.5 bar map sensor and wire it up to the MS unit. You have to do your own research on this though, i simply dont know enough about ms1 to be able to help you out.

You are on the MSFI forums right? So much great info and intel people there, if your running MS you should have a handle on that forum.

After seeing your edit i just realized something unfortunate for you.. Since your running a stock ECU and using the MS as a piggyback im pretty sure your going to have to keep the Maf. Without the maf plugged in, your ECU will go into limp mode and you wont be able to rev past 2500-3g's.

However, even with the maf plugged in it should only affect timing, since your MS is hard wired into your injectors.. So your stalling issue isnt making much sense to me right now.

You do have a vac line hooked up to your MS?

[480sx]

The only reason your having issues is because your tuning blind man. You have no idea what your doing to the AFR when you mess with the VE values, and accel(although you shouldnt be touching accel values yet).

You need a wideband, as stated earlier. Its really as simple as that.

Keep a realllyy close eye on your oil. If it starts to smell like gas, change it immediately. You are probably running super rich.

[Rhapsody]

Ya i haven't touched accel i was just wondering if something was wrong. But your probably right about me running rich. Im just using datalongs + megaview and MStweak3000 to help me tune. But hey its better to run rich than to go lean and get detonation. I think ill end up getting an aem wideband cause i heard the LM1 is ok but some people still end up going to the dyno. Unless i heard wrong and LM1 is good enough. I'm gonna be eventually doing drifiting + autoX on 14.7 psi boost so i want to know if i'v got my tune right for that.

The only reason your having issues is because your tuning blind man. You have no idea what your doing to the AFR when you mess with the VE values, and accel(although you shouldnt be touching accel values yet).

You need a wideband, as stated earlier. Its really as simple as that.

Keep a realllyy close eye on your oil. If it starts to smell like gas, change it immediately. You are probably running super rich.

[480sx]

OH heres the best piece of info i can give you. LM1 has a wideband controller that costs like 150 bucks that you can get now. It has no ability to data log, cant hook a gage up to it ect. Its sole purpose is to send a digital wideband output signal to aftermarket ECU's that have built in WBO2 support. For megasquirt, this is all you need.

Why spend 300 dollars for a AEM unit when you can spend half the cash and do the exact same thing, without the gage? I mean since your tuning with MS, your laptop kinda becomes your gage. Later, if you want a gage you can do a few things through MS that will allow you to do so.

[Rhapsody]

well guys its time to go full standalone. I know my fuel map isnt tuned that great right now but the car runs fine so i know i can get the spark tuned in ok. If anyone has some spark maps set for around 8 psi would be great to have. I will be using the diyautotune way of wiring the megasquirt for my spark. If there is any extra pieces of information that you've discovered when doing your full standalone please do tell. Man i'm gonna be so glad to get rid of that ****** maf. Anyways ill keep you guys posted on how its coming along. i also have some vids i took that im gonna post soon, so keep checkin back .