HKS EVC-S - User Manual

Questions and Answers

A
Alejandra RodriguezAug 14, 2025
What to do if my HKS Controller has a boost control malfunction?
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  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?
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  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.
J
Janet ChapmanAug 26, 2025
How to stabilize boost on HKS EVC-S?
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  lsheppardAug 26, 2025
  If the boost is unstable on your HKS Controller, it may be caused by actuator incapacity or insufficient valve area/stroke. Check the actuator characteristics and adjust accordingly.
E
Emily ClaytonAug 29, 2025
How to fix HKS Controller if it does not turn on?
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  Betty WrightAug 29, 2025
  If the HKS Controller unit does not turn on, the issue might stem from several causes. First, ensure the crimp connector is securely connected. If that's not the problem, inspect the fuse; if blown, replace it, and check the harness for any shorts. Lastly, verify the ground connection; if disconnected or bad, remove any paint or rust from the grounding point to ensure a solid connection.
P
Paul GibbsSep 1, 2025
Why doesn't the warning function work on my HKS EVC-S?
- S
  Sharon MooreSep 1, 2025
  If the warning function on your HKS Controller doesn't work, it could be because the boost exceeds the Warning Value for an insufficient time. To correct this, input a smaller number than the current Warning Value.
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Melissa DavisSep 5, 2025
Why does the warning function activate when the power is on in my HKS EVC-S?
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  James ParkerSep 5, 2025
  If the warning function activates when the power is on in your HKS Controller, the sensor learning value of the boost sensor is likely incorrect. Reset all data with the engine off and the Ignition key in the ON position.
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Kristina JarvisSep 9, 2025
Why setting cannot be changed on HKS EVC-S Controller?
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  Angela FloresSep 9, 2025
  If you cannot change a setting on your HKS Controller, it is likely because the Data Lock is turned on. Turn off the Data Lock to make changes.