Perfect Tuning MS3Pro-PNP User manual

MS3Pro-PNP
Nissan Skyline R32 with RB26DETT and RB25DET
User Manual
Hardware revision 1

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Table of content
Warning..................................................................................................................................................... 3
Installation of TunerStudio and MegaLogViewer (for Windows, Mac and Linux)....................................3
Software for Android devices ...................................................................................................................5
Software for Apple devices (iPhone, iPad)................................................................................................5
Installation of the MS3Pro-PNP. ...................................................................................................................6
1. Connect the MS3Pro-PNP .................................................................................................................6
2. Power up the MS3Pro-PNP ...............................................................................................................6
3. Connection to a MS3Pro-PNP with TunerStudio and a USB or serial cable...................................... 6
4. Calibrate the «TPS» (throttle position sensor) .................................................................................6
5. Calibrate the IAT (intake air temperature) and CLT (coolant temperature) if not using the factory
one. 7
6. Calibrate the Wideband.................................................................................................................... 7
7. *** IMPORTANT *** Check the timing and Check It Again! ............................................................ 7
What to do if the engine don’t start..................................................................................................... 7
Connectors.................................................................................................................................................... 8
Expansion connector.................................................................................................................................8
Wideband connector and controller.........................................................................................................9
How to crimp a wire for the expansion or wideband connector without the right crimper..............10
USB Connector........................................................................................................................................11
Serial Connector......................................................................................................................................11
Inputs and outputs......................................................................................................................................12
List of inputs and outputs .......................................................................................................................12
Injector outputs ......................................................................................................................................13
Ignition (spark) outputs...........................................................................................................................13
Knock sensors inputs...............................................................................................................................13
A/C Control..............................................................................................................................................13
Launch control / Flat-Shift / 2-step / Antilag..........................................................................................13
LED indicators .............................................................................................................................................14
Extra VR sensors conditioner circuits..........................................................................................................14
Internal Bluetooth module .........................................................................................................................15
Internal WIFI module ..................................................................................................................................15
Internal Data logging on SD Card................................................................................................................16
Internal MAP and Barometric sensor..........................................................................................................16

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Internal Bosch LSU 4.9 wideband controller (optional)..............................................................................16
Internal Real Time Clock .............................................................................................................................16
Traction control...........................................................................................................................................16
Boost Control ..............................................................................................................................................17
Base map.....................................................................................................................................................17
12 Month Limited Warranty .......................................................................................................................17
MS3Pro-PNP dimensions ............................................................................................................................18
Contact........................................................................................................................................................18
Accessories:.................................................................................................................................................19
Warning
All parts are sold for OFF ROAD RACE-ONLY ground-vehicle use only, or vehicles that predate any federal
and state emissions control requirements. Aftermarket EFI/EMS systems are not for sale or use on
pollution controlled vehicles.
Race parts are inherently dangerous and may cause injury or damage if improperly modified or altered
before use. Perfect Tuning will not be held liable for and will not pay you for any injuries or damage
caused by misuse, modification, redesign, or alternation of any of our products. Perfect Tuning will not
be held in any way responsible for any incidental or consequential damages including direct or indirect
labor, towing, lodging, garage, repair, medical, or legal expense in any way attributable to the use of any
item in our catalog or to the delay or inconvenience caused by the necessity of replacing or repairing any
such item.
All supplied Perfect Tuning calibrations, Wizards and other tuning information are offered as potential
starting points only. IT IS THE RESPONSIBILITY OF THE ENGINE TUNER TO ULTIMATELY CONFIRM IF THE
CALIBRATION IS SAFE FOR ITS INTENDED USE. Perfect Tuning holds no responsibility for any engine
damage that results from the misuse or mistuning of this product!
Documentation, technical support, discussion forums for all versions of MS3Pro is available at
http://msextra.com
The MS3Pro user manual is full of information for the Perfect Tuning MS3Pro-PNP as this MS3Pro-PNP
is based on the MS3Pro. http://www.ms3pro.com/downloads.html
Installation of TunerStudio and MegaLogViewer (for Windows, Mac and Linux)
-TunerStudio is the software created by EFI Analytics used to configure all versions of the
MS3Pro. The software with basic functionalities is free. For advanced features like custom dash

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boards, auto tuning and diagnostics you need to purchase the software. It’s possible to
download directly TunerStudio at: www.tunerstudio.com/index.php/downloads. When a
computer is connected to a MS3Pro for the first time with an USB cable, a driver may be
needed: http://www.ftdichip.com/Drivers/VCP.htm
Here is a custom dashboard created by users on MsExtra forum. You can see more dashboards
in this thread at: http://msextra.com/forums/viewtopic.php?f=122&t=36862&start=80 like
these from different users:
-MegaLogViewer is the software used to view the data logs created by TunerStudio, internal
MS3Pro memory or even the data logs created by the Android phone or tablet software. The
software is also free but you need to purchase if you want to have access to nice features like
Scatter plots. www.tunerstudio.com/index.php/downloads

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-
Software for Android devices
-Shadow Dash MS is the Android TunerStudio version. You can download it here :
https://play.google.com/store/apps/details?id=com.efiAnalytics.shadowdash for 9.99$
-MsDroid display real-time data and it’s also possible to edit the tune. The software is completely
free! https://play.google.com/store/apps/details?id=com.msdroid.
If MsDroid shows a connection error message go to
http://www.msextra.com/doc/ms3/files/release/ and downloads your MS3Pro software version
(by default 1.5.0) and extract the ms3pro.ini file to the MsDroid/ini folder on your Android
device.
-RealDash is a application available for Android, iPhone and Windows that can display really nice
dashes.
Software for Apple devices (iPhone, iPad)
-RealDash is a new application that will be available for iPhones with really nice dashes. Still no
official releases in April 2016. This requires the internal WIFI module.

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Installation of the MS3Pro-PNP.
1. Connect the MS3Pro-PNP
Disconnect the battery
The factory ECU is located on the passenger side kick panel. Remove the plastic cover over.
Install the MAP Sensor vacuum hose/tube to the MS3Pro-PNP unit. Connect the vacuum tube to
the manifold vacuum port where the fuel pressure regulator is connected.
The MAF sensors are not required and not used anymore.
2. Power up the MS3Pro-PNP
Put the key on when the ECU is connected and listen if you can hear the fuel pump running for around 3
seconds then turn off. This indicates that the MS3Pro-PNP is functional. It’s possible to look at the two
led on the MS3Pro-PNP. Red is for power to the MS3Pro-PNP and greed is active when fuel pump is ON.
3. Connection to a MS3Pro-PNP with TunerStudio and a USB or serial cable.
You might have to install the software drivers for the MS3Pro-PNP if it does not install automatically.
You can download it on the FTDI website at: http://www.ftdichip.com/Drivers/VCP.htm. If you are using
a USB to serial adapter, please refer to the manufacturer website for the drivers.
1. Plug the USB cable to the MS3Pro-PNP and your computer
2. Open TunerStudio.
3. Press on File, Project, New Project
4. Give a project name.
5. Put the key in the ON position to power up the MS3Pro-PNP and click on Detect. TunerStudio
will automatically detect the MS3Pro. If this step fails, put key in the off position and try again.
6. Press Next
7. The next window will let you choose between units you will want to use (Fahrenheit or Celsius).
Leave the other options to default and press Next.
8. The next window is to connect TunerStudio to the MS3Pro-PNP. Be sure to select the right port.
The baud rate will always be at 115 200.
9. Choose the desired dashboard. Click Apply.
10. You are now connected to your MS3Pro-PNP.
For more information please visit: http://msextra.com/doc/ms3/serial_setup.html and
http://msextra.com/doc/ms3/tunerstudio_setup.html.
4. Calibrate the «TPS» (throttle position sensor)
Turn the key to the ON position, then connect TunerStudio to the MS3Pro-PNP. Go to Tools, Calibrate
TPS then click on Get Current for the closed throttle ADC count while NOT touching the gas pedal. Now
with the gas pedal fully pressed, click on Get Current for the Full throttle ADC count.

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5. Calibrate the IAT (intake air temperature) and CLT (coolant temperature) if not
using the factory one.
Please note that when this dialog box open, the previous value is never loaded because this information
is saved in a data table and there is no way to know which sensor you chose previously.
To calibrate the sensors, you have to connect TunerStudio to the MS3Pro then go to Tools, Calibrate
Thermistor Tables. Select Air Temperature Sensor for Sensor Table and 3 Point Therm Generator then
in Common Sensor Values, select your sensor. Press on Write to Controller. Do that again for the other
sensor.
6. Calibrate the Wideband
Please note that when this dialog box open, the previous value is never loaded because this information
is saved in a data table and there is no way to know which sensor you chose previously.
If a wideband is used and it’s suggested, connect it to open TunerStudio. In TunerStudio, select Tools,
Calibrate AFR. Select your wideband sensor in the list or select Custom Linear WB and enter the values
manually with the manufacturer specifications.
7. *** IMPORTANT *** Check the timing and Check It Again!
This step is very because the timing signal is generated from the CPS (cam position sensor) signals and
the CPS can move. This step is here to ensure that the timing of the MS3Pro-PNP is synchronized with
the engine. If you do not perform this step, YOU CAN DAMAGE OR DESTROY YOUR ENGINE.
Remove cylinder 1 coil on plug, install a spark plug wire between the coil and the spark plug and connect
the timing light there.
Connect MS3Pro-PNP to TunerStudio then go to Ignition Settings and in the field Fixed Advanced, select
Fixed timing. Enter the value 10 at the Timing for Fixed Advance field.
Start the engine with fixed timing at 10 degrees. Check with a timing light if the timing is right. If not,
you need to adjust Trigger Angle/Offset(deg). Then, rev the engine and ensure that the timing stay at 10
degrees. If the timing drift, you can play with the setting Spark Hardware Latency.
Other info here: http://www.diyautotune.com/tech_articles/base_timing_how_to.htm
What to do if the engine don’t start
To prevent flooding the engine with fuel, it’s possible to press on the gas pedal at the maximum when
you turn the key on and during cranking. This activates the flood clear mode and completely stops gas
injection. You can also edit the Required fuel to 0in Basic/Load Settings,Engine and Sequential
settings. This will completely disable gas injection at all time.

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Ensure that the Crank and Cam synchronization is good. The Synced indication in TunerStudio will turn
green while cranking.
1. Ensure that the spark plugs are firing and you can check the timing while cranking.
2. If the engine seems like it want to start, you can try to slightly press on the accelerator pedal to
see if it helps. If the engine starts this mean that fine tuning is required for startups.
Connectors
Expansion connector
This connector contains the access to all the inputs and outputs to add more functionality to the
MS3Pro-PNP. This is the view of the connector on the ECU. Note that the numbers are also noted on the
connector plug. See Inputs and Outputs section for more information about the functionality of each
pin.
Description of the inputs and outputs pins.
Name
Description
1
PGND
Power Ground
2
SPARKG
Spark G output.
3
SPARKH
Spark H output.
4
PWM1
PWM 1 Ground Output 3A max
5
PWM2
PWM 2 Ground Output 3A max
6
PWM3
PWM 3 Ground Output 3A max
7
CAN H
CANbus network +
8
CAN L
CANbus network -
9
SGND
Sensor Ground
10
AIN3
Analog input 3, 0-5v
11
AIN2
Analog input 2, 0-5v
12
Wideband
0-5v wideband input signal if not
internal wideband controller is
used. Wideband output if the
internal wideband controller is
used.
13
IAT
Intake air temp sensor alternative
connection.
14
Stepper
Out 2
Ground output 0.75mA max.
15
HC3
High current output 3, 5A max.
16
INJI
Injector output «I» 5A.
17
INJJ
Injector output «J» 5A.
18
DI1
Digital input 1 ground activated.
19
DI2
Digital input 2 ground activated.
20
DI4
Digital switched 12v activated.
21
N/A
Not available
22
N/A
Not available
23
VR DFIN3-
VR#1 negative input
24
VR
DFIN3+
VR#1 positive input or direction
connection to Digital frequency
input 3 depending on the jumper
position inside the MS3Pro-PNP.

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Wideband connector and controller
The internal wideband Bosh LSU 4.9 controller is optional. To know if the controller is present inside
your MS3Pro-PNP, look at the serial number sticker on the back of the MS3Pro-PNP. When the
controller is present, the provided wideband sensor will connect directly to this connector and will
output a 0-5v signal on the expansion connector pin #12; 0v = 10 gasoline AFR and 5v = 20 gasoline AFR.
If the internal wideband controller is not installed, it’s possible to use any external wideband controller
that output a 0-5v signal on the expansion connector pin #12.
Pin description
Pin
Function
Perfect Tuning wideband sensor.
1
LSU_W
White
2
LSU_Y
Yellow-Green
3
LSU_GR
Green
4
12v
Brown, 12v 3A fused output
5
LSU_BK
Black
6
LSU_R
Red
Inside the MS3Pro-PNP, there is a small jumper named “Wideband”that allows selecting if the MS3Pro-
PNP needs to read the signal from the expansion connector pin 12 (right position) (internal or external
wideband) or the signal on the factory oxygen sensor (O2).

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How to crimp a wire for the expansion or wideband connector without
the right crimper.
1. Strip the wire like the picture:
2. Insert the wire into the connector:
3. With long noses pliers fold the small edges.
4. Then fold the long edges:
5. After the connector should look like this: