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Very strange EBC/HKS EVC problem.

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Old Nov 14, 2003 | 10:11 PM
  #16  
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Here's a pic.
Attached Thumbnails Very strange EBC/HKS EVC problem.-omg.jpg  
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Old Nov 14, 2003 | 10:12 PM
  #17  
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Also I noticed something. I get that screen to stay when I disconnect the wire from the stepping motor to the control box and plug it back in. If I turn it off with the Pwr button, It makes a slight buzzing noise and th screen stays.
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Old Nov 15, 2003 | 01:11 PM
  #18  
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anyone? all the hoses are on there secure.

am i missing some sort of setting?
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Old Nov 15, 2003 | 01:14 PM
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I only have half the set of instructions and it says under "Overboosting" turn down the knobs or adjust the offset.

what's the offset? I didn't adjust that before when I had no problems?
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Old Nov 15, 2003 | 01:43 PM
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I'll notice if I unplug the wire to the stepping motor and plug it back in, or if I disconnect the negative one or two of the knobs will blink until I turn them, or the actual a/b switcher button.

god this is annoying.
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Old Nov 15, 2003 | 10:40 PM
  #21  
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bump.
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Old Nov 16, 2003 | 09:36 AM
  #22  
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It sounds like something may have gone wrong with one of the components, I mean if was working and you checked everything, it seems pretty obvious. Do you know someone local who might let you swap components for testing? Since the system could not be that old couldn't you get it replaced under warranty?
Situations like this are where buying from a good local vendor can pay off.
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Old Nov 16, 2003 | 09:40 AM
  #23  
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I bought it from a vendor on these boards. I'm gonna take out the stepping motor today and pretty much completely "reinstall" it.

Is there any way to completely reset the unit entirely? Maybe i'll try that too.
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Old Nov 16, 2003 | 10:25 AM
  #24  
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Make sure that you know it's broken before you send it back to HKS....they have so many bad return claims for EVCs that they are now charging the customer $40 if it's not broken after they've tested it.

That buzzing noise when you first turn it on is the stepper motor resetting. It's a good thing that it does that, you'd have to worry if it didnt buzz.

Make sure all your hoses arent pinched, also make sure that your hoses arent pushed into the boost nipple too far after the turbo. Since the nipple has a bend, pushing to far makes a leak and your boost will spike and/or read the wrong boost level.

Rob
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Old Nov 16, 2003 | 08:29 PM
  #25  
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Coolguy, thanks. I didn't even think of that.

I was pretty certain that if it buzzed/hummed, it was active and it was obviously working.

Tomorrow i'm going to tear my entire engine bay apart and pretend like i'm installing it for the first time.

How far should that hose be in? I have it pretty much all the way in on that turbo nipple.

Also, what does it mean when one, or two of those buttons blink?

One last thing, in the manual it says that the stepping motor should be installed facing up. I've had mine facing down with no problems, is this fine?
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Old Nov 16, 2003 | 08:34 PM
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I just had another thought.

Prior to this, I had my HKS SSQV venting to the atmos and I just put on my recirc kit. Could there be some sort of leak with that? Everything seems to be on pretty tight though.
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Old Nov 16, 2003 | 10:06 PM
  #27  
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Originally posted by Deceit
Coolguy, thanks. I didn't even think of that.

I was pretty certain that if it buzzed/hummed, it was active and it was obviously working.

Tomorrow i'm going to tear my entire engine bay apart and pretend like i'm installing it for the first time.

How far should that hose be in? I have it pretty much all the way in on that turbo nipple.

Also, what does it mean when one, or two of those buttons blink?

One last thing, in the manual it says that the stepping motor should be installed facing up. I've had mine facing down with no problems, is this fine?
I think the reason it has to be up is so the weight of the pintle in the stepping motor is back against the solenoid and not down against the seat. If that made any sense.
And like you said the manual pretty much says it's mandatory.
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Old Nov 16, 2003 | 10:19 PM
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I see what you mean about the motor, although I ran it facing down since day 1 and didn't have a problem. I'll flip that as well tomorrow.

I'll post what happens tomorrow =/
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Old Nov 16, 2003 | 10:29 PM
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Originally posted by Deceit
Coolguy, thanks. I didn't even think of that.

How far should that hose be in? I have it pretty much all the way in on that turbo nipple.


If you push it in too far (on the part where the boost reading is after the turbo) you'll see how the tip of the hose stretches like an oval. At that point you need to back it off and then put something to make a good seal. I say get some small hose clamps and screw them tight. Dont use the spring type ones that come with the EVC.

Originally posted by Deceit
Also, what does it mean when one, or two of those buttons blink?
It depends. Are they alternating? If they are both blinking i think it means that your boost level was changed since the last time you were in the car and its just warning you. I think it tells you about that in the manual.

Originally posted by Deceit
One last thing, in the manual it says that the stepping motor should be installed facing up. I've had mine facing down with no problems, is this fine?
I have mine with the nipples facing down to the ground and it's working fine. I'm going to relocate the stepper motor somwhere else in the engine bay and likely i'll put it on it's side with the EVC logo facing up,
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Old Nov 17, 2003 | 11:17 AM
  #30  
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Took everything out today and noticed a few things:

Like Coolguy said, the hose was pushed a bit far in the turbo nipple and it was pretty loose as well. Maybe my mechanic knocked it out when he was taking the tranny out and just simply put it back on. In any scenario, I put it back on with an adjustable clamp.

Next I took all the hoses off the stepping motor and inspected them carefully. Since the motor is facing down, I noticed that one the hose to the turbo (right before the filter closest to the motor), there was about 5 or 6 cracks, probably just from the ambiguous position that it was in. I cut off about .75" and stuck all the hoses back in.

I also noticed that I didn't have a clamp where my HKS SSQV was residing back to the intake. My dumbass forgot to put another one on so that could explain the ****ty response and other things that I was getting.

I put everything back together, inspected everything and took it for a run.

Although the unit still says "Error" (which is a common "error"), it is controlling boost and keeping it down. I spiked to about 19 with a 40 duty cycle on selection A. I'm going to turn this back to where it was before (around 65-70) and take some more runs.

Everything looks good... for now .

Thanks to everyone. And Coolguy, I'm not sure if anyone really knows about what you said with the hose to the turbo. I had no idea of that myself and I'm sure others will appreciate this knowledge.

Thanks again
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