Pariah

I'm going to be doing Uberdata tuning myself since there is no shop within a days drive here in MT that knows how to tune Uberdate.
So in my research, I've found how to tune and what I need.
One thing I was told on the Uberdata forums is that I need to make my MAP sensor see boost. Right now it's on the throttle body and obviously won't see boost there. So I was recommended to tap into a vacuum line from the intake manifold.

Now some pictures....

This is my MAP sensor



This is the little fitting that goes into the throttle body.



This is a vacuum line currently used by the FPR. You can see the other vacuum line from the manifold that feeds the FMU and my boost guage.



So can I put a T into this vacuum line and feed the map sensor too as shown below? The fitting is perfect, fits just as tight as the fitting for the FPR and FMU. Then would I just block off the old place for the MAP sensor?
Also, will Uberdata take care of the CEL since the MAP will be seeing boost now?



This setup was just mocked up for pictures, it's running stock right now.

Also wondering about injectors. I picked up some blue top DSM 450's along with a resistor box. Would it just be easier to solder the resistors instead of splicing into the resistor box? Also, will the Honda bushings/o rings that hold the injector into the manifold fit the DSM injectors? Or do I need the DSM rings and bore them out?

Just trying to get some info in preparation to ordering everything else I need (chipped p28, wideband, etc).

debogsr

you look good just make sure to block off the map sensor holes on the TB. Make sure to remove the FMU also when you hook up the uberdata and injectors.

Resistors are just as easy as the resistor box for your injecotrs, just do whatever you think would be easier.

b18ccivics

if you can find a map sensor from an obd0 car or a 92 civic or any honda with a firewall mounted sensor (some accords) they send out the same signal as your current sensor but actually use a hose for connection then use your old sensor for your block off plate. I think i have a few laying around pm me if interested.


Modified by b18ccivics at 6:58 AM 10/20/2005

Pariah

From the pictures, you can see that the current map sensor can use the current vacuum hoses.
Can you post a picture of the obd1 map sensor?

debogsr

dude you dont need a new map sensor. the one you have is fine.

Pariah

i understand that, just wondering what the firewall mounted one looks like.

debogsr

my bad

Pariah

Hypothetical question. What would happen if my MAP sensor was connected to where it would "read" boost. Would it hurt anything, or just have the CEL?

_gurusan_

I thought the honda map sensor can read up to 11.2 psi?
btw you have to bore the stock Seals out a little to make the DSM's fit

debogsr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pariah &raquo;</TD></TR><TR><TD CLASS="quote">Hypothetical question. What would happen if my MAP sensor was connected to where it would "read" boost. Would it hurt anything, or just have the CEL? </TD></TR></TABLE>

ummm I dont think it would run that good. It wouldnt compensate for fuel though so thast the prob.

You either want the Map sensor to read no boost. and run a FMU and stock injectors

Or run a EMS (ubderdata) and get bigger injectors and a tune and have the Map read boost.

Pariah

that's exactly what i was assuming. thanks for the info.

SOHC_MShue

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by _gurusan_ &raquo;</TD></TR><TR><TD CLASS="quote">I thought the honda map sensor can read up to 11.2 psi?
btw you have to bore the stock Seals out a little to make the DSM's fit</TD></TR></TABLE>
It will throw a code if you are running a stock ecu and it reads boost. With uberdata though there are tables for boost so it won't throw a code and all is good

Unsivil_audio

holy ****, someone in FI is close to me. Wait like a month and I'm gonna be tuning my setup Uberdata (maybe Crome). What kinda boost are you hitting with your setup (because EL seems to kill s/c'd setups)?

_gurusan_

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">It will throw a code if you are running a stock ecu and it reads boost. With uberdata though there are tables for boost so it won't throw a code and all is good </TD></TR></TABLE>

Kewl. I'm running crome. Always wondered how it got rid of the CEL

Pariah

Hey, Sheridan is only two hours away. Cool.

Are you running Crome Pro?

And my setup has peaked at 7psi on a cold day, otherwise it's at 6psi at the higher RPM's.

With Crome, how do you even tune w/o having datalogging?

Unsivil_audio

Bah, its only like 1.5hr drive, tops. I dont have Crome Pro, I'm probably going to tune with uberdata first (since I'd need the full version of Crome to datalog; and in uberdata its free), until I can afford to buy it. I chipped my ecu, and am using the nokia USB cable for datalogging.

I still need to build a dp for my setup. As well as fabricate one last section of my charge piping. But then I'll be tuning my setup, I need to find a dyno though (there arent any in sheridan).

SOHC_MShue

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pariah &raquo;</TD></TR><TR><TD CLASS="quote">Hey, Sheridan is only two hours away. Cool.

Are you running Crome Pro?

And my setup has peaked at 7psi on a cold day, otherwise it's at 6psi at the higher RPM's.

With Crome, how do you even tune w/o having datalogging?</TD></TR></TABLE>
you can datalog using the ecucontrol program. Otherwise you can just tune the old fashioned way by looking at the wideband display closely

Pariah

I think I'll keep with Uberdata. I read that Uberdata likes boosted P28 ecus, and Crome doesn't.

093turbo16

iTrader: (2)

Everything looks good. And for uberdata, you have to resplice you IAT wires.

Pariah

I'll need to be picking up those parts from you sometime in the near future

b18ccivics

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by debogsr &raquo;</TD></TR><TR><TD CLASS="quote">dude you dont need a new map sensor. the one you have is fine. </TD></TR></TABLE>

yeah the one you have is fine but they seam to blow off vaccume lines because they were not ment to be hooked up this way. an 0bd0 map sensor was designed to be hooked up to a hose so they work better.

093turbo16

iTrader: (2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18ccivics &raquo;</TD></TR><TR><TD CLASS="quote">

yeah the one you have is fine but they seam to blow off vaccume lines because they were not ment to be hooked up this way. an 0bd0 map sensor was designed to be hooked up to a hose so they work better. </TD></TR></TABLE>

Or the CX map sensors. There are just a little differences between the two. I don't remember what they are though, but it isn't big enough to worry about. Whatever you can get ahold of should work just fine.