HKS AK015 Boost Controller Instruction Manual

The HKS EVC-S enables the adjustment of boost settings from
inside the vehicle’s cabin area. It is designed to improve engine
output and is ideal for racing on a closed circuit. The product
consists of four separate units: Display Unit, Control Unit, Boost
Sensor, and Solenoid Valve, each compact and easy to install.

Key Features:

Capable of controlling up to 250 kPa (36.0 PSI)

Simple boost setting with four independent boost modes
Return function to factory setting when power is turned
off

Warning function for excessive boost levels
Data memory function for saved settings

Exhaust bypass select function for different turbocharger
types
Boost unit of measure selectable between kPa and PSI

Product Usage Instructions:

Installation:

Read the instruction manual thoroughly before
installation.
Ensure all necessary tools and equipment are available for safe
installation.

Install the four separate units in the engine bay and interior
as per the manual instructions.
Connect the Boost Sensor independently without routing into the
vehicle’s interior.

Boost Setting:

Input desired boost data into each of the four boost modes (A,
B, C, D) for intuitive control.

Warning Function:

If the boost level exceeds the warning value, the unit will
alert with an audible buzzer and visually on the display. Ensure to
monitor and adjust accordingly.

Data Memory:

All setting values are saved in the internal memory for
retrieval even after ignition shut-off or battery
disconnection.

Exhaust Bypass Select:

Select the appropriate exhaust bypass function based on your
turbocharger type for optimal performance.

Boost Unit of Measure:

Select between kPa and PSI as the unit of measurement for boost
levels.

Frequently Asked Questions (FAQ):

Q: Can the HKS EVC-S be used on public roads?

A: If used on public roads, ensure to follow all necessary laws,
procedures, and regulations for a tuned/modified vehicle to comply
with legal requirements.

Q: What should I do if I encounter low oil pressure or high
temperatures after installing the EVC-S?

A: Monitor vital readings like water and oil temperature
regularly to avoid issues. If problems persist, consult a
professional for assistance.

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Pursuing the Ultimate in Engine Performance and Efficiency. Produced by HKS Company Limited.

Instruction Manual
NOTICE
This manual assumes that you have and know how to use the tools and equipment necessary to safely perform service operations on your vehicle. This manual assumes that you are familiar with typical automotive systems and basic service and repair procedures. Do not attempt to carry out the operations shown in this manual unless these assumptions are correct. Always have access to a factory repair manual. To avoid injury, follow the safety precautions contained in the factory repair manual.

E05121-K00240-00 2024. 01. 25 Ver.3-1.01
45003-AK015

INTRODUCTION

Read this instruction manual prior to installation to ensure safe and correct usage and optimal product performance.

PRODUCT USE APPLICATION PART No. REMARKS

EVC-S2 Boost Pressure Controller for Turbocharged Automobile Engine DC12V Negative Ground Vehicles 45003-AK015 · A fuel controller (e.g. F-CON V Pro, F-CON iS, etc) is required to use this product. · When installing this product on twin turbocharged vehicle or a vehicle using a 4mm hose
line, a separate Hose Set is required. · When the boost pressure is increased, the factory ECU may activate a fuel cut. To deactivate the fuel cut function, a unit such as the HKS FCD is required. When using an HKS FCD, a fuel controller must be used as additional fuel tuning.

The HKS EVC enables the adjustment of the boost setting from inside the vehicles cabin area.

This product was developed to improve engine output and was designed to be used for racing on a closed circuit, where this unit is highly effective. When the engine output is improved, water and/or oil temperature may rise, and insufficient oil pressure may occur. Always monitor these vital readings to obtain optimal engine performance.

If using this product on a public roads, follow all necessary laws, procedures and regulations for a tuned/modified vehicle.

Compact Size4 Separate Units EVC-S includes 4 separate units: Display Unit, Control Unit, Boost Sensor, and Solenoid Valve. Each unit is compact and easy to install in the engine bay and the interior. Since the Boost Sensor is independent, hose routing does not need to run into the vehicles interior.

Capable of controlling High Boost EVC-S can control up to 250 kPa (36.0 PSI).

Simple Boost Setting Boost control is performed by inputting simple data into each of boost modes A, B, C, and D, achieving intuitive operability.

Return Function The boost setting returns to the factory setting when the power is turned off. On some vehicles, the boost value may be lower than the boost before installing the EVC-S.

4 boost setting functionIndependent boost settings can be made for boost modes A, B, C, and D, so you can use them depending on the purpose.

45003-AK015

Warning Function If the boost level exceeds the warning value, the unit will warn the user will an audible buzzer and visually on the display. The boost value will be lowered to the set value. This function protects the engine and turbocharger from excessive boost.
After Image Display Function When the boost changes from positive pressure to negative pressure, the maximum boost under positive pressure can be displayed for 3 seconds. This function can be turned off.
Data Memory Function Each setting value is saved in the internal memory; the saved values are retrievable even after the ignition is shut-off or the battery is disconnected.
Exhaust Bypass Select Function Can be used as swing valve type (internal wastegate/actuator) or poppet valve type (external wastegate) for a large capacity turbocharger.
Boost Unit of Measure Select Function The boost unit of measure is selectable between kPa and PSI.
Data Lock Function The setting data can be protected by a password to prevent unwanted or accidental changes.

This manual indicates items you need to pay attention to in order to install this product safely and lists precautions to avoid any possible damage and/or accidents.
For any missing, defective and/or damaged parts, contact your Authorized HKS Dealer. This product was developed for racing use. To use this product on the public road, follow the
necessary laws, procedures and regulations for a tuned/modified vehicle. HKS will not be responsible for any damage caused by incorrect installation and/or use or use
after modification and/or dismantling of this product. This product was designed based on installing it onto a factory vehicle or a vehicle using other
HKS products. The performance and/or safety cannot be guaranteed if this product was installed onto other inapplicable vehicles. This product works only on vehicle with DC12V negative ground. The specifications of this product are subject to be changed without notice. This manual is subject to be revised without notice. This manual must be given to the end user after installation is complete.

45003-AK015

INDEX
INTRODUCTION……………………………………………………………………………… 1 INDEX ………………………………………………………………………………………… 3 SAFETY PRECAUTION ……………………………………………………………………… 4 PARTS LIST ………………………………………………………………………………… 7 FEATURES and FUNCTIONS ……………………………………………………………… 8 INSTALLATION ……………………………………………………………………………… 11 CONFIRMATION AFTER INSTALLATION ………………………………………………… 22 OPERATION ………………………………………………………………………………… 23 ERROR INDICATION ………………………………………………………………………… 33 OPTIONAL PARTS LIST …………………………………………………………………… 34 MAINTENACE………………………………………………………………………………… 34 TROUBLESHOOTING ……………………………………………………………………… 35 PRODUCT SPECIFICATIONS ……………………………………………………………… 35

SAFETY PRECAUTION
Below are symbols used in this manual to highlight areas where.
WARNING -Risk of severe injury or death may result if warning is not acknowledged or followed.
CAUTION -Risk of injury to self, damage to vehicle or property may result if caution is not taken.
WARNING
Make sure to work on the vehicle in a well-ventilated area to prevent possible explosion or fire.
Do not mount the unit where it can distract driving. Do not install this product on a 24V vehicle. It is designed for use on a
12V vehicle. Make sure to remove the cable from the negative terminal of the battery
to avoid possible damage to other electronics during installation. Make sure to hold connectors when removing them to avoid possible
damage to other electronic parts caused by disconnections or by a short circuit. Stop using the product if any unusual conditions are noticed; it may cause a fire or an electrical shock. Consult an authorized dealer immediately. Do not operate the EVC-S2 while driving to avoid the possiblity of an accident.

45003-AK015

CAUTION
Do not install this product by yourself unless you know how to use the tools and equipment necessary to safely perform service operations on your vehicle.
Do not modify, disassemble and/or remodel this product and any of its attached parts.
Handle the parts with caution at all times. Avoid allowing oil and/or water from entering the unit. It may cause
damage to the engine. Prior to installation, make sure that the engine bay temperature has
cooled. Failure to let the engine cool can lead to severe burns. Select the appropriate exhaust bypass type. Selecting the wrong type
may cause damage to the vehicle. Install the unit away from excessive heat or water to avoid possible
malfunction and damage to the engine. Do not tie or bundle a vehicle fuel line with any of the other hoses and/
or harnesses. It may cause severe damage to the vehicle. Make sure all connections and wiring are not disconnected, short
circuited or incorrect. It may cause an electrical shock or damage to the vehicle. Use the provided splices and install them to the correct positions. If not, it may cause serious damage to the vehicle. Insert the vacuum filter and replace it at regular intervals. If not, it may cause damage to the vehicle. When installing the vacuum filter, make sure no oil or lubricants are existant to cause the hose to come off. If a hose comes off, it may cause damage to the vehicle. Replace the vacuum filter earlier than the regular interval if there is excessive build up. Dirt build up may cause an inability to control boost, which may cause damage to the engine. Install the air relief valve of the Valve Unit downward to avoid allowing oil and/or water from entering the valve. It may cause damage to the vehicle.

CAUTION
Do not raise the boost excessively. It may cause damage to the engine and/or the turbocharger.
The warning function must be activated to prevent any damage to the engine caused by over-boosting.
Do not test the product on the vehicle on a public road. If this product or the vehicle does not perform properly, consult your
authorized dealer immediately. Do not repair the product by yourself. If an unusual noise, smell and/or vibration is noticed, take the necessary
measurements referring to the user’s manual. Insulate wires left on the vehicle after removal of the product. It may
cause damage to the electronic parts.
Daily check-up of the vehicle must be done by the owner. This manual shows a typical installation. Actual installations may vary depending on
the vehicle application. Refer to the factory manual when removing the factory parts. Make sure all connections and wiring are correct. Do not lose and/or damage any removed parts. Use the appropriate tools to tighten bolts and nuts with the correct torque specs to
avoid damage. Make sure not to disconnect any wiring from the vehicle when installing the product. For a vehicle equipped with a boost control solenoid valve, remove the connector or
hose to deactivate its function. There might be a dot that doesn’t light and a dot that always lights in the display.
This is due to the characteristic of the liquid crystal panel, and it is not mulfunction.

45003-AK015

PART LIST
This product consists of the below-mentioned part. Please verify that all parts are in proper conditions before installation.

Mode [A]

Boost PH 2 5 0 kPa

250

MADE IN JAPAN

kPa

1 Display Unt

2 Control Unit

3 Boost Sensor

4 Solenoid Valve

1.2

2.5

1.5

5 Powe Supply Harness

6 Valve Extension Harness 7 Display Harness

8 6mm Hose

9 4mm Hose

4-4-4mm 10 T-Fitting

4mm ,6mm

6mm

11 Vacuum Filter

12 Hose Clamp

6mm……-
4mm……-

Bracket x 1 M4 Bolt x 2
13 Valve Bracket Set

M6 BoltNut x 1 M6 Flat Washer x 1 M6 Rubber Washer x 2
14 Valve Install Hardware

M6 BoltNut x 1 M6 Flat Washer x 1 M6 Loock Washer x 1
15 Boost Sensor Install Hardware

60×10
16 Double-sided Tape 2

HKS ELECTRONICS TECHNOLOGY

100

– V20er.3-1.0

17 Tie Wrap

18 Splice 5

19 Fitting 1

20 Instruction Manual

Tools required for installation: Circuit Tester or Volt Meter, Screwdriver, Socket Wrench, Wire

Cutters, Hose Cutters and Pliers.

Retain all unused parts.

45003-AK015

FEATURES and FUNCTIONS
Display Unit

Mode [A] Boost PH 2 5 0 kPa
250 kPa

Button Button Button Button

Name Button Button Button
Button
Button +

Function
When the main screen is displayed, press briefly to switch between A, B, C, and D boost modes, and press and hold to switch EVC function on/off. When the EVC function is off, there is no control by EVC-S2 and the boost is normal. Each setting is used to determine selection items and values.
When the main screen is displayed, press and hold to reset the peak hold value, press briefly to display button information. When selecting an item for each setting, the selected item moves upward and the value changes in the positive direction.
When the main screen is displayed, press and hold to switch to boost set mode, press briefly to display button information. When selecting an item for each setting, the selected item moves downward and the value changes in the negative direction.
When the main screen is displayed, press and hold to switch to menu mode, press briefly to display button information. When in boost set mode, press briefly to switch to boost mode where settings can be changed. Press and hold in boost set mode, menu mode, or each setting mode to switch to the main screen display. Press briefly in each setting mode to switch to menu mode.
When the main screen is displayed, press while quickly pressing to switch to circuit mode or scramble mode.

45003-AK015

Display Unit
Main Screen
Mode [A] Boost PH 2 5 0 kPa
250 kPa
Button information screen When selecting an item

Button information screen

S.Push L.Push L.Push L.Push

ModeChange PeakReset BoostSet Menu

Button information screen When changing settings

+
–

Name

Function

Boost settings Displays the current boost mode settings A to D, OFF.

Boost pressure peak hold value

Displays past maximum boost pressure.

Boost pressure Displays the current boost pressure.

Displays the functions of each button when on the main screen.
Button information S.Push: Short press / L.Push: Long press
Example: Press and hold button to switch to the menu display screen.

Displays the function of each button when changing settings.

Button information

Decision Return

, Move selection in the direction of the arrow

+, – Setting value plus/minus, function selection

45003-AK015

Warning screen
Mode [A] WRN PH 2 5 0 kPa
147 kPa
After image screen
Mode [A] Boost PH 2 5 0 kPa
132 kPa
Circuit mode screen
Mode [A] CSM PH 2 5 0 kPa
132 kPa
Scramble mode screen
Mode [A] SBC0 PH 2 5 0kPa
127 kPa

If the boost exceeds the warning setting value and the warning conditions are met, a warning will be activated and the boost will be controlled to be lowered by the set amount. Also, WRN will be displayed flashing under the logo and a buzzer will sound. The warning will be canceled when the boost pressure becomes 5 kPa or less.
When boost pressure changes from positive pressure to negative pressure, the maximum boost pressure from positive pressure to negative pressure will be displayed blinking for 3 seconds.
The EVC-S logo will turn red and CSM will be displayed below the logo.
The EVC-S logo will turn red and SBC will be displayed below the logo. While scrambling is in progress, the remaining scrambling time is displayed on the right side of the SBC and a buzzer sounds.

45003-AK015

INSTALLATION
1. Removal of Battery Terminal……………………………………………………………… 11
2. Hose Connection Layout …………………………………………………………………… 11 2. 1. Connecting the Boost Sensor …………………………………………………… 12 2. 2. Connecting the Solenoid Valve …………………………………………………… 13 2. 3. Connecting of a Swing Valve Type ……………………………………………… 14 2. 4. Connecting of a Poppet Valve Type ……………………………………………… 18
3. Wiring ………………………………………………………………………………………… 20 3. 1. Installing Splices…………………………………………………………………… 20 3. 2. Wiring ……………………………………………………………………………… 20 4. Mounting of Components …………………………………………………………………… 21 4. 1. Mounting the Display Unit ………………………………………………………… 21 4. 2. Mounting the Solenoid Valve ……………………………………………………… 21 4. 3. Mounting the Boost Sensor ……………………………………………………… 21 4. 4. Securing Hoses and Harnesses……………………………………………………… 22
5. After Installation…………………………………………………………………………… 22

WARNING
This product was designed to be used with vehicles using a DC12V negative ground. Do not use on a vehilce with a 24V ground.

This manual shows a typical installation. Actual installation may vary depending on the vehicle application.
1. Removal of Battery Terminal
1Disconnect the negative terminal from the battery.

2. Hose Connection Layout
(1) Considering the hose and harness lengths, determine the appropriate mouning layout of Display Unit, Control Unit, Boost Senser, and Solenoid Valve.

ADVICE Leave some slack for the harness and hoses to avoid tension during engine movement. Do not install any components in high temperature areas.

45003-AK015

21Connecting the Boost Sensor

Boost Sensor 4mm Hose (5)

(1) Cut the Hose to 5cm in length and connect the cut hose to the 4mm Vacuum Filter as illustrated in the diagram.
NOTE Remove any oil and/or lubricants on or in the
hose and Vacuum Filter.

4mm Vacuum Filter

Surge Tank

Disconnect 4mm Hose

(2) Disconnect the 4mm Hose Between the fuel regulator and surge tank from the surge tank side.

Fuel Regulator

Surge Tank

4mm Hose (5) 4mm Hose

4-4-4mm T-fitting

Fuel Regulator

(3) Cut the 4mm Hose to 5cm in length and insert the insert the T-fitting as illustrated in the diagram.

Boost Sensor

Surge Tank

4-4-4mm T-fitting

4mm Vacuum

4mm Hose

Fuel Regulator

(4) Connect the T-fitting and 4mm Vacuum Filter using the remaining 4mm Hose as illustrated in the diagram.
NOTE Keep the 4mm Hose to a minimum langth. Remove any oil and/or iubricants on or in the hose and vacuum filter. Face the Boost Sensors fitting downward to prevent any oil and/or water from entering the sensor.

45003-AK015

22Connecting the Solenoid Valve
(1) Remove the caps on the COM terminal, NO terminal, NO terminal, and NC terminal.

Cap

Swing Valve Type
Hose Clamp
Poppet valve Type

6mm Hose (5cm) 6mm Vscuum Filter

Swing Valve Type (2) Install the Fitting to the COM terminal and NO
terminal. (3) Cut the 6mm Hose to 5cm in length, and connect
the cut hose to the Fitting on the NO terminal and the 6mm Vacuum Filter. NOTE Use a hose clamp to connect the hose to the fitting. Use Remove any oil and/or lubricants on or in the hose and vacuum filter.

6mm Hose (5cm)
Hose Clamp 6mm Vacuum Filter

Poppet Valve Type (2) Install the Fittings to the COM terminal and NC
terminal. (3) Cut the 6mm Hose to 5cm in length, and connect
the cut hose to the 6mm Vacuum Filter.
NOTE Use a hose clamp to connect the hose to the
fitting. Remove any oil and/or lubricants on or in the
hose and vacuum filter.
(4) Refer to 2-4 to connect to the vehicle.

45003-AK015

23Swing Valve Type
231For Applications without a Boost Pressure Control Solenoid Valve
Before Installation (Factory Connection Layout)

Turbine Actuator

Airflow Meter

Compressor Fitting
Throttle Valve
6mm Hose

Air Cleaner
Surge Tank

Fuel Regulator

After Installation

Turbine

Airfow Meter

Actuator

6mm Hose

COM

Vacuum Filter

ComPressor Fitting
Throttle Valve
6mm Hose

Surge Tank

Air Cleaner 4-4-4mm T-fitting

Fuel Regulator

NO
Valve Remove the cap on
the NC terminal. (Ret.2-2)

4mm Hose 14

45003-AK015

Hose Clamp

Fitting

(1) Disconnect the hose connected to the actuator from fitting on the compressor side. NOTE The position on the compressor side fitting may vary depending on the vehicle. Keep the removed factory hose clamp for later use.

Hose Clamp

Actuator

6mm Hose

6mm Vacuum Filter

Hose Clamp Fitting

(2) Connect the provided 6mm Hose to fitting and the 6mm Vacuum Filter on the NO terminal of the Solenoid Valve.

Valve
(3) Connect the factory hose from the actuator to the fitting on the COM terminal of the Solenoid Valve.

Hose Clamp

Factory Hose

NOTE Remove any oil and/or lubricants on or in the hose and vacuum filter. Use hose clamps when connecting the 6mm Hose to the 6mm fitting. Depending on the vehicle, the factory hose may not be long enough to connect from the actuator
to the Solenoid Valve. In this case, we apologize for the inconvenience, but please purchase an 6mm hose separately before use.

45003-AK015

232For Applications with a Boost Pressurs Control Solenoid Valve 1 For vehicles equipped with aboost pressure control solenoid valve, disconnect the connector
and hose to deactivate this function. Before Installation (Factory Connection Layout)

Turbine

Airflow Meter

Actuator
Boost Control Solenoid Valve

Compressor

6mm Hose

Throttle Valve

Air Cleaner
Surge Tank

Fuel Regulator

After Installation

Turbine Boost Control Solenoid Valve
Actuator
Rubber Cap 6mm Hose

Rubber Cap

Airflow Meter

Compressor

6mm Hose

Throttle Valve

Surge Tank

Air Cleaner
4-4-4mm T-fitting

COM

Vacuum Filter

Valve

Remove the cap on the NC terminal. (Ref.2-2)

4mm Hose

Fuel Regulator 45003-AK015

233For Applications with a Boost Pressurs Control Solenoid Valve 2 For vehicles equipped with aboost pressure control solenoid valve, disconnect the connector
and hose to deactivate this function. Before Installation (Factory Connection Layout)

Turbine Actuator
Boost Control Solenoid Valve

Airflow Meter

Compressor

6mm Hose

Throttle Valve

Air Cleaner
Surge Tank

Fuel Regulator

Turbine
Actuator Rubber Cap
6mm Hose Boost Control Solenoid Valve Vacuum Filter
COM

After Installation

Rubber Cap

Airflow Meter

Compressor

6mm Hose

Throttle Valve

Air Cleaner

Surge Tank

4-4-4mm T-fitting

Fuel Regulator

Valve

NO
Remove the cap on the NC terminal. (Ref.2-2)

4mm Hose 17

45003-AK015

24Poppet Valve Type
When installing on a poppet valve car, 6mm Hose, 8mm Hose, 6mm Hose Clamp, 8mm Hose Clamp, 6-8-6mm T-Fitting, 6mm Fitting(straight or L- Shaped) are required separately.
Before Installation

Turbine

Airflow Meter

Upper Port Wastegate

Compressor

Throttle Valve

Air Cleaner
Surge Tank

Fuel Regulator

Turbine

Wastegate
Install the fitting to upper port
(Straight or L-shaped)

6mm Hose

COM

After Installation
Airflow Meter

Compressor 6-8-6mm T-fitting Throttle Valve
6mm Hose

Air Cleaner

Surge Tank

4-4-4mm T-fitting

Fuel Regulator

NC Vacuum Filter

Valve

Remove the cap on the NC terminal.(Ref.2-2)

4mm Hose 18

45003-AK015

5cm Hose Clamp

Fitting Cut
8mm Hose Wastegate

(1) Cut the 8mm hose 5cm from the compressor’s fitting . Remove the remaining 8mm hose and fitting form the wastegate.
NOTE The position of fitting on the compressor may
vary depending on the vehicle.

Fitting

8mm Fitting

(2) Install the 6-8-6mm T-fitting using the 8mm Hose Clamp.

6-8-6mm T-fitting

Hose Clamp 6mm Hose
6mm Vacuum Filter

(3) Connect the T-fitting with the 6mm vacuum filter to the NC terminal fitting using the 6mm hose.
ADVICE Remove any oil and/or lubricants on or in the
hose and vacuum filter.

Hose Clamp 6mm Hose

(4) Remove the 8mm fitting from the wastegate, and install the 6mm fitting (straight or L-shaped) included in the Poppet Valve Hose Set.

6mm Fitting

(5) connect the T-fitting to the wastegate using the provided 6mm hose.

NOTE Use hose clamps when connecting hoses to fittings.
19

45003-AK015

3Wiring
31Installing the Crimp Connectors
(1) Strip about 5mm of wire insulation.
(2) Connect another wire to the uncovered portion by twisting the wires together.
(3) Crimp the twisted wires using a crimp connnector.
(4) Cover the crimp connector and with electrical tape to insulate.
3. 2. Wiring

Strip 5mm of insulation. Twist wires together.
Crimp the wires using a crimp connector.
Insulate with electrical tape.

Display Unit
Mode [A] Boost PH 2 5 0 kPa
250 kPa

Interior Engine Room

Solenoid Valve

Control Unit

Power Supply Harness

MADE IN JAPAN

Valve Extension Harness
Boost Sensor

(1) Connect the Solenoid Valve to the Valve Extension Harness. Pull the Valve Extension Harness and the harness connected to the Boost Sensor from the engine compartment into the vehicle’s interior.
(2) Connect the Valve Extension Harness and the Boost Sensor to the Control Unit. (3) Connect the display unit and display harness, and the display harness and control unit. (4) Connect the Power Supply Harness.
Connect the red wire of the Power Supply Harness to a 12V IG (ignition) using a crimp connector. a) Reconnect the negative cable to the battery. b) Turn the ignition on to find the 12V IG wire using a voltage meter. c) Disconnect the negative cable from the battery.
(5) Connect the black wire of the power harness to body ground. ADVICE Remove any paint and/or rust from the surface where the ground the wire is connected.
(6) Connect the power Supply harness to the Control Unit.

45003-AK015

4Mounting of Components

4. 1. Mounting of the Display Unit
Display Unit (Back)
double-sided tape double-sided tape

(1) Remove any dirt, dust and/or oil from the mounting surface for the Display unit.
(2) Mount the Display Unit using the double-sided tape.
ADVICE Mount the Display Unit in a position lower than
eye level, or tilted downward for best visibility.

42Mounting the Solenoid Valve

(1) Install the Valve Bracket to the Solenoid Valve

using the M4 bolts from the Valve Bracket Set.

(2) Secure the Valve Bracket and the Solenoid Valve

Valve

to the vehicle using the Valve Installation Hardware.

Valve Installation Hardware

CAUTION
Install the Solenoid Valve away from excessive heat or water/moisture to avoid damage the valve.

Valve Bracket
Valve Bracket Bolt (M4)

43Mounting the Boost Sensor
Boost sensor Installation Hardware

(1) Secure the Sensor to the vehicle using the Boost Sensor Installation Hardware.
(2) When securing the Boost Sensor, make sure the fitting faces downward as shown in the diagram.

Fitting (face downward

4. 4. Securing Hoses and Harnesses
(1) Secure hoses and harnesses using the provided Tie Wraps.
ADVICE Leave some slack for the harnesses and hoses to avoid tension during enging movement.

5. After Installation
(1) Reinstall all removed factory parts. (2) Reconnect the negative cable to the battery.

CONFIRMATION AFTER INSTALLATION

Check the following after the installation process is complete.

1. Check following after the installation process is complete.

ITEMS TO CHECK Make sure hoses are routed and connnected correctly. Make sure hoses are not loosened. Make sure hoses are not damaged. Make sure hose clamps are tightened. Make sure all bolts and nuts are tightened securely. Make sure all installed components do not come in countact with any other parts. Make sure all installed parts are properly secured. Make sure wiring is done correctly. Make sure crimp connectors are connected securely. Make sure proper crimp connectors are used and crimped securely. Make sure the installed parts are mounted securely and do not interfere with driving. Make sure the negative cable terminal is securely attached to the battery. Make sure the boost pressure control solenoid valve is deactivated.

2. Start the engine and check the following

ADVICE Do not raise the engine RPM right after the engine is started. (Let it idle.)

ITEMS TO CHECK Make sure air is not leaking. Make sure the RPM rises smoothly after revving the engine 2-3 times while in neutral. Make sure the installed parts do not come in contact with any other parts. Make sure there is no excessive stress on hoses and/or harnesses. Make sure all installed parts have not loosened after stopping the engine.

45003-AK015

OPERATION
1. Boost Control Overview ………………………………………………………………… 24 1.1. Control On Mode …………………………………………………………………… 24 1.2. Circuit Mode ……………………………………………………………………… 24 1.3. Scramble Mode …………………………………………………………………… 24 1.4. Warning Mode ……………………………………………………………………… 24 1.5. Control Off Mode…………………………………………………………………… 24
2. Operation Overview Diagram……………………………………………………………… 25
3. Basic Operation …………………………………………………………………………… 26
4. Main Screen Operation …………………………………………………………………… 27 4.1. EVC-S2 Function Switching ……………………………………………………… 27 4.2. Switching Boost Mode …………………………………………………………… 27 4.3. Peak Hold Value Reset …………………………………………………………… 27 4.4. Switch To Boost Set Screen ……………………………………………………… 27 4.5. Switch To Menu Screen …………………………………………………………… 27 4.6. Switching To Circuit Mode/Scramble Mode Screen……………………………… 27
5. Setting……………………………………………………………………………………… 29 5.1. Warning Settings …………………………………………………………………… 29 5.2. Boost Settings……………………………………………………………………… 29 5.3. Scramble Settings ………………………………………………………………… 30 5.4. Function Settings ………………………………………………………………… 30 5.5. Status Settings …………………………………………………………………… 31 5.6. Data Lock Settings ………………………………………………………………… 32

1Boost Control Overview
When you turn on the vehicle’s ignition switch, if the control mode was in control off mode when you last turned off the ignition switch, it will go into control off mode. Otherwise, it will be in control on mode. In control on mode, four boosts can be set: boost modes A to D.Other modes include circuit mode, scramble mode, and warning mode.
1. 1. Control On Mode
Boost control is performed based on the offset, response, overboost, and sampling values set for each boost mode A to D.
1. 2. Circuit Mode
Each time you press any button for a short time, the boost mode that was selected just before entering circuit mode and the boost mode set in Mode Select in the scramble settings will alternate.
1. 3. Scramble Mode
Each time you press any button for a short time, the boost mode that was selected just before entering scramble mode and the boost mode set in Mode Select in the scramble settings will switch for the set time.
1. 4. Warning Mode
When the boost exceeds the warning setting value and the warning conditions are met, the system enters warning mode and reduces the boost pressure based on the setting. The warning will be canceled when the boost pressure becomes 5 kPa or less.
1. 5. Control Off Mode
It is a normal boost without being controlled by EVC-S2.

45003-AK015

2Operation Overview Diagram
Ignition ON

Main Screen

Control OFF/ON

Long press button

Boost mode A – D

Short press button

Clear peak hold value Long press button

Button information

Short press button –

Button +
Long press button
Long press button
Long press button

CSM or SBC Boost Set

Long press button

Menu
Short press button (Long press to go to main screen)

Scramble