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Electronic Boost controller install problem HKS EVC4

Tommyk

By Tommyk,
in Engines & Forced Induction

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Tommyk Veteran

Tommyk

Posted
Posted

Hi guys

Ive just installed my boost controller.

I took it for a spin, and everything *seems* a lot faster.

However, when I go to calibrate it through learning mode, it says that my stock boost level is actually 0.64 bar ? And it doesnt seem to want to boost over 0.7 bar, even When i adjust the EBC to 1.1 bar

Now im not sure that ive connected it correctly

The HKS EVC 4 has 3 lines. One of the lines ive connected to the stock boost sensor right up the back where the black box is, off the line coming off the plenum. As per this photo here

EVC2.JPG

Now, the other two lines off the EVC are meant to go to the actuator, and the other to the line between the turbo and the intercooler (or something like that). What ive done is disconnect the stock boost solenoid, and connect up the EVC in place of it. ie one line goes to the wastegate actuator, the other to the line (i think its the BOV return line ?)

As per this pic

url]

Now Its not adjusting the boost properly, and I have no idea whats wrong ?

I think ive connected it up wrong.

If anyone can post pics/tell me where I should hook up the hoses to, it would be much appreciated.

Cheers

Tom

BHDave Grand Master

BHDave

Posted
Posted

Definately looks wrong.

You need the pressure signal coming off the plenum which looks right and one hose running to the actuator and one running to the nipple on the inlet pipe (or nipple on the front of the turbo if you have one) where you have the tee. The tee you have on the inlet pipe doesn't look right to me because you need the run the ebc as a closed circuit if that makes sense.

Tommyk Veteran

Tommyk

Posted
  • Author
Posted

I think the pressure signal is fine, because it goes to the map sensor up the back.

Must I have one hose connected directly to the wastegate actuator, and the other directly into the nipple off the intercooler pipe going to the turbo, thus getting rid of the factory t-piece ?

Cheers guys

Want more boost :)

Tom

Definately looks wrong.

You need the pressure signal coming off the plenum which looks right and one hose running to the actuator and one running to the nipple on the inlet pipe (or nipple on the front of the turbo if you have one) where you have the tee. The tee you have on the inlet pipe doesn't look right to me because you need the run the ebc as a closed circuit if that makes sense.

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