HKS EVC-S User Manual

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Instruction Manual

E05121-K00121-00

2009.10.01

Ver. 3-1.01

HKS ELECTRONICS TECHNOLOGY

NOTICE

This manual assumes that you have and know how to use the tools and equip-

ment 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.

Table of Contents

Questions and Answers:

A
Alejandra RodriguezAug 14, 2025
What to do if my HKS Controller has a boost control malfunction?
- C
  Craig NixonAug 14, 2025
  If the HKS Controller experiences a boost control malfunction, several factors could be at play. First, reset and re-enter all data to ensure that there are no incorrect settings. Next, verify that all hose connections are correct, using the proper exhaust bypass hose routings. Check all hoses for disconnections or cuts, replacing them if necessary. Finally, inspect the vacuum filter for dirt buildup and replace it if needed.
E
Erika HutchinsonAug 17, 2025
Why does the boost increase excessively on my HKS EVC-S Controller?
- H
  Heather FullerAug 17, 2025
  If the boost increases excessively on your HKS Controller, it's likely due to an incorrect matching of the Response or Overboost Value. To resolve this, input a smaller number than the current Response or Overboost Value.
P
Peter HernandezAug 21, 2025
What to do if the boost does not increase on my HKS EVC-S?
- M
  Mariah WillisAug 21, 2025
  If the boost does not increase in your HKS Controller, it might be due to insufficient turbo output capacity. Try resetting all values within the capable setting range.

HKS EVC-S Specifications

General

Type	Electronic Boost Controller
Control Method	Solenoid Valve Control
Display	LED
Operating Voltage	12V
Warranty	1 Year
Maximum Boost Pressure	2.0 bar

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