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:

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6. Add a little bit of solder to the connector to ensure it will hold forever. After that you can use
this crimp in the expansion connector.
USB Connector
Connector used to interface the MS3Pro-PNP with an USB “B” male type cable. Remember: only one
connection at the time to the MS3Pro-PNP (USB, serial, Bluetooth). A reboot might be required if you
change the connection method while the MS3Pro-PNP is powered.
Serial Connector
Connector used to interface the MS3Pro-PNP with a DB-9 serial cable. Remember: only one connection
at the time to the MS3Pro-PNP (USB, serial, Bluetooth). A reboot might be required if you change the
connection method while the MS3Pro-PNP is powered.

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Inputs and outputs
List of inputs and outputs
Here are all the inputs and outputs for the MS3Pro-PNP that you will use in TunerStudio settings.
I/O
MS3Pro-PNP Module pin name
Location in the MS3Pro-PNP
Input
Digital Switched In 1
Connected to the expansion connector pin 18.
Input
Digital Switched In 2
Connected to the expansion connector pin 19
Input
Digital Switched In 3
Factory ECU connector pin “A/C” for A/C idle up signal
Input
Digital Switched 12v In 4
Connected to the expansion connector pin 20
Input
Analog Input 1
Barometric sensor inside ECU.
Input
Analog Input 2
Expansion connector pin #11
Input
Analog Input 3
Expansion connector pin #10
Input
Digital Frequency In 1
Factory ECU connector pin “SPD”(Speed sensor)
Input
Digital Frequency In 2
High resolution cam position sensor signal
Input
Digital Frequency In 3
Depending on the internal jumper position, this input
is connected to the expansion connector pin #24 or
the VR1 output conditioner chip. See the “Extra VR
sensors conditioner” section for more information.
Output
TachOut
Factory ECU connector pin 7 for tachometer control.
Output
PWM 1
Connected to the expansion connector pin 4 and
factory ECU pin 113 (Not used for R32 Skyline).
Output
PWM 2
Connected to the expansion connector pin 5 and
factory ECU pin 25 (Wastegate).
Output
PWM 3
Expansion connector pin 6 and factory ECU pin 4 for
AAC Valve.
Output
High current output 1
Factory ECU connector pin 32 for check engine light.
Output
High current output 2
Factory ECU connector pin 33 for FICD valve.
Output
High current output 3
Expansion connector pin 15.
Output
Injector A
Factory ECU connector
Output
Injector B
Factory ECU connector
Output
Injector C
Factory ECU connector
Output
Injector D
Factory ECU connector
Output
Injector E
Factory ECU connector
Output
Injector F
Factory ECU connector
Output
Injector G
A/C Clutch control
Output
Injector H
Fuel pump speed control (medium speed)
Output
Injector I
Expansion connector pin #16
Output
Injector J
Expansion connector pin #17
Output
IAC1A
Not used
Output
IAC1B
Factory ECU pin 19 when jumper J28 inside ECU is
installed.
Output
IAC2A
Not used
Output
IAC2B
Expansion connector pin 14
Other
CANH
Expansion connector pin #7
Other
CANL
Expansion connector pin #8

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Injector outputs
MS3Pro-PNP can only drive high impedance injectors with a maximum of 5 amperes per channel with
thermal shutdown protection. If you are running low impedance injectors, you need to use a resistor
box (contact Perfect Tuning) or peak and hold driver board. Unused injector outputs may be used as
general purpose ground activated outputs.
Ignition (spark) outputs
MS3Pro-PNP use 5v logic level to drive an external ignition module or logic level coil packs. Do not
connect ignition outputs directly to the negative terminal of an ignition coil. This will damage the
MS3Pro-PNP. We recommend the 6 channel igniter module (see Accessories) to drive directly coils.
Maximum current is 200mA per channel. Unused ignition outputs may be used as general purpose
outputs.
Knock sensors inputs
The factory knock sensors are connected to the MS3Pro-PNP. To try this option, you need to enable it in
Ignition Settings, Knock Sensor Settings, Knock Control and set Input type to Internal. The resonance
frequency of each engine (useful in the other window settings):
86mm and resonance frequency = 6.7 kHz
For more information, refer to the MS3Pro user manual.
A/C Control
The MS3Pro-PNP is connected to the A/C for idle up. It is possible to control the A/C clutch to disable the
A/C when you’re full throttle or based on other conditions.
The A/C idle up input is connected to the “Digital input 3”.
To enable it, go to the “Startup/Idle” menu in TunerStudio and then go to Air Conditionning Idle-up
menu.
Launch control / Flat-Shift / 2-step / Antilag
Use any digital input like the any Digital Inputs from the expansion connector. Connect this pin to
ground to enable the launch control with a clutch switch or a push button.

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Here is a configuration example:
For more information, refer to the MS3Pro user manual.
LED indicators
Red LED: This red led indicate that there is 12v power on the MS3Pro.
Green LED: Connected to the Fuel pump output of the MS3pro and will light up when the fuel
pump is running
Extra VR sensors conditioner circuits
The MS3Pro-PNP also include one extra variable reluctance conditioner circuits. The circuit is useful to
monitor 2 wire ABS sensors, or any 2 wire shaft speed sensors. It is connected to Digital Input Frequency
Input 3”.
The conditioner circuits are the same as the crank and cam conditioners.
There are four (2) jumpers inside the MS3Pro-PNP that are used to route the signals to the VR
conditioner circuits or directly connected to the Digital Frequency Input.

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If both jumpers are on the left in the red circle (see image below), at the VR position, it means that the
pin on the expansion connector #22 will be connected to the VR circuit. If the jumper is on the right, this
mean the expansion connector pin #22 will be connected directly to the “Digital Frequency Input 2”. The
expansion connector pin #21 named “VR DFIN2 –“ is normally connected to the second wire of the VR
sensor.
And this is the same thing for the expansion connector pin #24 with the “Digital Frequency Input 3. The
expansion connector pin #23 named “VR DFIN3 –“ is normally connected to the second wire of the VR
sensor.
Internal Bluetooth module
The MS3Pro-PNP has an internal Bluetooth module inside for wireless communication.
The Bluetooth module is powered by the red dip switch on the back. To enable Bluetooth module, slide
the switch #1 to the ON position. To use the Bluetooth module, you need to pair with the module called
PERFECT_TUNING_MS3PNP and enter the password 1234.
Note that in every situations, only one connection to the MS3Pro-PNP can be made at the same time
(one device, with serial, USB or Bluetooth).
Internal WIFI module
The MS3Pro-PNP has an internal WIFI module for wireless communications. To see if your MS3Pro-PNP
is equipped with the WIFI module, look at the serial number tag on the back. To power up the WIFI
module, slide the red switch #2 to the ON position. A new WIFI hotspot will appear and the password is :
“12345678” without the quotes. The IP address is 192.168.4.1 and the port is 8080.

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Internal Data logging on SD Card
An 8GB SD card is included with each MS3Pro-PNP. It is possible record many days of logs in this internal
memory. All logs are time stamped so it’s easy to find the right data log of a specific moment.
The SD card is removable for faster downloading of the logs. It’s also possible to browse the SD card
with TunerStudio but it takes more time to download all the logs.
Internal MAP and Barometric sensor
There is a 4 bar (44 psi of boost maximum) map sensor inside the MS3Pro-PNP that is connected on the
bulkhead fitting on the side of the factory ECU connector and it use the MPX6400 configuration. The
barometric sensor is a 1.15 bar sensor and use the MPX4115 configuration.
Internal Bosch LSU 4.9 wideband controller (optional)
The MS3Pro-PNP can include an internal Bosch 4.9 wideband controller to be used with the Bosch
wideband sensors. To see if the wideband is included in your MS3Pro-PNP, refer to the serial number
sticker.
The provided sensor with 6 feet cable is plug and play in the 6 pin wideband connector on the side of
the ECU.
If the internal wideband controller is installed, the expansion connector pin #12 will output a 0-5v signal
(0v = 10.0 AFR, 5v = 20.0 AFR). It’s possible to connect an external gauge to this signal.
Internal Real Time Clock
The RTC module (real time clock) is used to assign a timestamp to all the logs on the SD card. The
module uses a CR1220 that is included and installed in the MS3Pro-PNP. This battery is designed to last
many years.
Traction control
The MS3Pro-PNP include many type of traction control algorithm. More information is available in the
MS3Pro 1.4 user manual: http://www.ms3pro.com/downloads.html
If your car is equipped with ABS system, it’s possible to tap the front and rear wheel speed sensor signal
to the MS3Pro-PNP. The signal need to be connected to the Extra VR sensors circuits on the expansion
connector.

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Boost Control
Connect the boost control valve to any of the PWM outputs or injector “I” or “J” outputs.
The MS3-Pro has multiple boost control strategies. Refer to the MS3Pro user manual for more
information.
Refer to www.perfecttuning.net for an electric boost solenoid.
Base map
All MS3Pro-PNP comes with a default base map that is able to start and run your engine but tuning will
be required.
12 Month Limited Warranty
Perfect Tuning warrants to the consumer that all products will be free from defects in material and
workmanship for a period of twelve (12) months from date of the original purchase. Products that fail
within this 12-month warranty period will be repaired or replaced at Perfect Tuning’s option, when
determined by Perfect Tuning that the product failed due to defects in material or workmanship. This
warranty is limited to the repair or replacement of the Perfect Tuning part. In no event shall this
warranty exceed the original purchase price of the Perfect Tuning part nor shall Perfect Tuning be
responsible for special, incidental or consequential damages or cost incurred due to the failure of this
product. Warranty claims to Perfect Tuning must be transportation prepaid and accompanied with
dated proof of purchase. This warranty applies only to the original purchaser of product and is non-
transferable. All implied warranties shall be limited in duration to the said 12-month warranty period.
Improper use or installation, accident, abuse, unauthorized repairs or alterations voids this warranty.
Perfect Tuning disclaims any liability for consequential damages due to breach of any written or implied
warranty on all products manufactured by Perfect Tuning. Warranty returns will only be accepted by
Perfect Tuning when accompanied by a valid Return Merchandise Authorization (RMA) number. Product
must be received by Perfect Tuning within 30 days of the date the RMA is issued. Oxygen sensors are
considered wear items and are not covered under warranty. Please note that before Perfect Tuning can
issue an RMA for any electronic product, it is first necessary for the installer or end user to contact the
us at [e-mail] to discuss the problem. Under no circumstances should a system be
returned or a RMA requested before the above process transpires. Perfect Tuning will not be
responsible for electronic products that are installed incorrectly, installed in a non-approved application,
misused, or tampered with. Any Perfect Tuning electronics product can be returned for repair if it is out
of the warranty period. There is a minimum charge of $50.00 for inspection and diagnosis of Perfect
Tuning electronic parts. Parts used in the repair of Perfect Tuning electronic components will be extra.
Perfect Tuning will provide an estimate of repairs and receive written or electronic authorization before
repairs are made to the product

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MS3Pro-PNP dimensions
185mm X 159mm X 38mm (7 ¼ x 6 ¼ x 1 ½ inches)
Contact
If you have any issues, or questions, you can take a look on www.msextra.com or contact me at
[e-mail]. I can give remote desktop and phone support. Just contact me by email
first.

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Accessories:
-Multiple Wideband are available. Please visit http://perfecttuning.net for more information.
-Fast response GM intake air temperature sensor (open element IAT)
-GM intake air temperature sensor or coolant temperature sensor (close element).
-Exhaust gas temperature sensor. Up to 1250 Celsius with interface board.
-USB-Serial cable for computer or Android device.
-Resistor box for low impedance injectors
-6 channel igniter box to direct drive coil packs.
Visit http://perfecttuning.net for more information or contact us at [email protected]et.