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BNR32 GTR HKS EVC Pro problems, help needed!

BNR32

By BNR32,
in R Series (R30, R31, R32, R33, R34)

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BNR32 Rising Star

BNR32

Posted
Posted

As title explains, my HKS EVC Pro boost controller is struggling to keep boost stable, its spiking its head off as soon as im in third or fourth gear. It spikes to the boost cut and then switches the unit off which ends all the fun.

Ive emailed bd4's and they were helpful in telling me that i could try changing the line filters and doing a master re-set. The line filters is an avenue i could look into, the master re-set and tune on dyno was done with a still spiky boost controller. There are no boost leaks, i really think its the boost controller, but i am unsure of which part to replace or how to narrow down.

The other alternative is to go brand new but again, i would rather save dollars in replacing the hks solenoid or control module over buying a new controller. The hks evc pro is still the most expensive boost controller in the hks catalogue even though it is an old design, due to its advanced features.

Does anyone have a boost controller that they swear on? I really like the HKS EVC pro up until now!

Any comments would be appreciated.

TG.

Evo_Lee Experienced

Evo_Lee

Posted
Posted

Nothing wrong with the HKS unit, how old is your unit?

Could be a stuffed solenoid, you don't expect these things to last forever.

What's this about the line filter to do with spiking??? There is no relation, a Blitz unit don't use one...and we subsequently changed in a straight connector to a customer's HKS one (line filter connector are prone to crack after some time)...no problems after...cause having a filter is always better.

BNR32 Rising Star

BNR32

Posted
  • Author
Posted

a blocked line filter can cause a restriction and there is the chance that a spike could occur. BD4's informed me on this one, ill try taking the filter out as it is black and that could be the problem.

Anyone got a spare solenoid for the HKS EVC Pro?

TG

BNR32 Rising Star

BNR32

Posted
  • Author
Posted

Have a look at the nipple that comes out of the standard gtr solenoid line and tell me that a blocked filter is less restricitve than that! We all know what removing the nipple in the solenoid line does so you can imagine the signal strength to the hks solenoid with a blocked filter... think about it.

Why would the Australian HKS distributor claim that line filter blockages are the second most common faults for boost spikes following leaking hoses?

TG

meshmesh Mentor

meshmesh

Posted
Posted

TG,

The manual says the likelyhood of spiking can be caused by "dirty" filters. Your problem sounds a little similar to what happened with my EVC4 (aka EVC3 in Japan)... I tried everything from adjusting the "OFFSET" to it max and still no luck. In the end I did a full reset, as detailed in the Manual, On my way to work @around 5am in the morning I found a nice stretch of deserted road, and did my 3rd runs from 2000rpm.. and since then it's been perfect.

BNR32 Rising Star

BNR32

Posted
  • Author
Posted

meshmesh, could you detail the events of you mishap in an email to me? [email protected], i am desperate to get this working!

Thanks for your comments, i would love to know how to fix this problem. So you just did a full reset and setup the controller how? I do have the manual but i would like to hear your case.

Did you ever bother with changing the filter to the solenoid?

Cheers.

TG

meshmesh Mentor

meshmesh

Posted
Posted
meshmesh, could you detail the events of you mishap in an email to me? [email protected], i am desperate to get this working!

Thanks for your comments, i would love to know how to fix this problem. So you just did a full reset and setup the controller how? I do have the manual but i would like to hear your case.

Did you ever bother with changing the filter to the solenoid?

Cheers.

TG

TG,

I didn't change anything, just did a full reset as specified in the manual.

A brief run down;

1) If I set the Boost to say 1.1bar, the boost reading would fluctuate between 1.2 - 1.3bar... eg: it would roughly spike around .2of a bar above the setting.

2) Check & Tried everything, the manual says if boost goes over your setting adjust it by either lowerin or increasing the OFFSET setting between 50-150 depending on whether your turbo is internal or external wastegate... In my case the GT2530's are Internal (I think, always confuses me) You also need to make sure at the back of the evc 3/4 (dunno what model you have) the switch which reads something like SW/PO or something is flicked to the correct setting depending on whether your turbo is internal or external.

3) Here's a post I postedup sometime ago when I worked it out see below...

The problem was fixed after it turned out the evc needed a RESET & LEARNING MODE run. I basiclly followed the instructions as detailed in the EVC setup manual. The boost now holds/reads perfectly, and the OFFSET mode setting is spot on 100 where it should be.

After the RESET & LEARNING MODE runs, I also turned off the AUTO ADJUST setting as specified in the manual which it recommends to do, simply by: Turn the Ignition to ON, holding the MOD button, flick the SW-PO switch > wait for the beep (still holding te MOD button) then return it SW-PO to it's original position and you should hear another beep.

So if anyone is having issue with boost readings going over the set boost levels, and you cannot adjust your OFFSET any more (eg: 50 or 150 - like me) just do the above or refer to the manual.

Hope that helps

Evo_Lee Experienced

Evo_Lee

Posted
Posted
Have a look at the nipple that comes out of the standard gtr solenoid line and tell me that a blocked filter is less restricitve than that! We all know what removing the nipple in the solenoid line does so you can imagine the signal strength to the hks solenoid with a blocked filter... think about it.

Why would the Australian HKS distributor claim that line filter blockages are the second most common faults for boost spikes following leaking hoses?

TG

You said it...2nd most...so which is the first!

I just can't see how a dirty filter could spike that much 0.2bars and I'm serious.

I guess small spikes isn't my concern...but 0.2bars I certainly would be.

meshmesh Mentor

meshmesh

Posted
Posted

TG..

Have you had a chance to set the LEARNING Mode yet?.. I'd try that first before you start ripping the thing apart. Remember you need to first RESET the unit before you start the LEARNING mode... best to read your manual, as yours is newer than ours and may differ slightly.

PS: Do it on the road & not on a dyno. Just find a nice "unsed" stretch of road (maybe near an airport) and test how much distance you need from start to stop.

Evo_Lee Experienced

Evo_Lee

Posted
Posted
read my comments, i stated that leaking hoses were the first!

TG

I suggested the solenoid because you said you didn't think you had a leaky hose, which is largely what fails over time...and I have known a few even the best.

Fair enough, my experience with the unit was perhaps different.

BNR32 Rising Star

BNR32

Posted
  • Author
Posted

Meshmesh,

I havent had a chance to do the learning mode thingy yet. I will as soon as i get the chance, probably on Sunday morning if its a crisp morning (id like to do it when its cold as this is when it spikes the hardest) ill have to do it on the highway though as my car is making about the same power as your car (323.5Kw at all four) and as you would know, 240+ km/h is not hard to achieve and go past when in 4th gear at full song.

I am just hoping that this will work, i dont want to change the the trim level from 100, i did that before and it was simply shit. I am glad to hear that your experience was the same and that reset and relearn fixed the problem.

TG

BNR32 Rising Star

BNR32

Posted
  • Author
Posted

Ok ive got the EVC Pro manual in front of me and it doesnt really ever use the words self learning. It does state that you have to reset the stock boost levels which i gather must start the self elarning phase.... This can be done by holding down the mod, alt and sbc buttons simultaneously until a beep is heard. Can i do this rather than a master reset, or is a master reset needed?

TG

Silver Newbie

Silver

Posted
Posted

i have a evc controller (hks) in my 33 gtst. my controller has two line to the external gate. i know if the lines are around the wrong way it plays silly buggers. Also check your high boost setting is not on low boost, and your low boost is not high. i hope this helps

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