Help viewing Boost

[SoCal Goat]

I can't seem to get this right.

I've tried this:

http://www.hptuners.com/forum/showth...ighlight=boost

and this:

http://www.hptuners.com/forum/showth...ighlight=boost

and currently this:

http://www.hptuners.com/help/index.h...p_to_boost.htm

to no avail.

I have the 0-5 volt and ground from the MAP connected to the EIO input 3
v2.1.18.0 MPVI (Pro I believe) with EIO
2004 LS1 GTO with the HP 3bar custom operating system.
GM 3bar MAP part #12223861

I'm attaching the relevant files to look over.
Can someone show me where I'm going wrong?

Attachment 9490

Attachment 9491

Attachment 9492

[TiredGXP]

Since you are running a sensor directly to the EIO3 input, you need to create a user defined pid to record the voltage signal and insert it into your table display in the EIO3 position.

In the attached screen shot i've created such a pid based on the following assumptions:

Your MAP sensor reads three standard bars (304 kPa)
0 volts = 0 psi
5 volts = 44.1 psi (three standard bars)
each psi = .113 volts (rounded)
Assumed sea level where a standard bar is 14.7 psi.

you probably need to check your MAP's spec sheet and modify the formula accordingly.

Attachment 9496

[SoCal Goat]

Since you are running a sensor directly to the EIO3 input, you need to create a user defined pid to record the voltage signal and insert it into your table display in the EIO3 position.

In the attached screen shot i've created such a pid based on the following assumptions:

Your MAP sensor reads three standard bars (304 kPa)
0 volts = 0 psi
5 volts = 44.1 psi (three standard bars)
each psi = .113 volts (rounded)
Assumed sea level where a standard bar is 14.7 psi.

you probably need to check your MAP's spec sheet and modify the formula accordingly.

Attachment 9496

I appreciate the response.
Tried it, the scaling is still off though.

The MAP's spec's are:

kPa Min Volt Max Volt
40 0.501 0.761
71 1.058 1.210
240 3.816 3.952
304 4.784 5.044

I get 0.115 volts per psi
if 14.5= bar

[PID11.imp]-14.5= also doesn't seem to work

[Bill@HPTuners]

Part of the problem is your not following the directions here http://www.hptuners.com/help/vcm_edi...ters_gm_os.htm when it comes to applying a custom OS...specifically this part

(This step for 2bar and 3bar enhancement only) Open VCM Scanner and connect to the vehicle. Open the Table display (Scan -> Table Display). Right-click the "Manifold Air Pressure (SAE)" PID and select "Delete". This removes the existing 1 bar PID from the table, if you don't do this the histogram will not function correctly.

Once you've done that please rescan and post if your still having issues.

Thanks,
Bill