E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > Forced Induction Forum Sponsored by Active Autowerke

Forced Induction Forum Sponsored by Active Autowerke
Discuss supercharging, turbocharging and even nitrous and water injection here.
Sponsored by Active Autowerke

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 10-19-2012, 06:38 PM   #21
triksterut
Registered User
 
Join Date: May 2009
Location: Utah
Posts: 62
My Ride: 05 M3 Vert
Wow man; your story is exactly like mine. Ran the 1.5 for a year or so put the Stage 2 stuff on it and ran it on the 1.5 tune. It ran fine and idled great. Put the Stage 2 software on there and it's been awful ever since. I'm kind of out of things to try honestly. I'll let you know if I come up with anything else. Call and tell Zak at active you're having the same issue. I wonder if some of it is altitude. Where are you at? I'm in Utah at about 5-6k feet.

Quote:
Originally Posted by EpicM3SC View Post
I had a Stage 1.5 for 2 years, the car was running perfectly fine, no issue at all.

Then I upgraded to Stage 2 a month ago. I first started the car with the Stage 1.5 tune to check if everything was ok before flashing the DME with the Stage 2 tune.
The car started instantaneously, the idle was perfect, no issue at all except that the car was running rich because of the new injectors.

Then I put the Stage 2 tune, and now my idle is not stable and the car sometimes stall coming to a stop.
I've checked my AFR, everything is fine when I drive the car, it's around 14.7 at stabilized speed and slowing climbing from 10.8 to 11.8 when I do a pull.
But at idle my AFR is around 17 which is way too lean.

Is it the tune or something else, I don't know.


Didn't had time to do more about the issue, except sending a mail to AA, but no response yet.
triksterut is offline   Reply With Quote
Old 10-20-2012, 05:38 PM   #22
triksterut
Registered User
 
Join Date: May 2009
Location: Utah
Posts: 62
My Ride: 05 M3 Vert
Man, I'm really getting frustrated. HPF with an AEM is sounding pretty damn good right about now.

I rigged up a system to pressure test my engine in lieu of a smoke machine (didn't want to wait for my friend to come up next weekend). I pressurized my system and fixed what could have been a minor boost leak - but probably not a vacuum leak. Now everything is solid under pressure. No leaks of any kind. Didn't make a bit of difference. I pull 15 in/Hg at cold idle. That seems rather low; but I think that may be an effect of the altitude (5500ft ish)?

I haven't gotten my wide band yet, but Epic's post sounds so close to mine I wouldn't be surprised if his readings are the same as mine. I think the only reason the 1.5 tune idles is because it's REALLY rich at idle.

In logging the OBD2 data from my car (PLX Kiwi FTW) - I observe my short term fuel trims are pretty high at idle. 25-40% positive fuel trim on all four banks. I noticed my fuel pressure was high at idle (50psi) and I was getting short term fuel trims in the 20-30% range. After I adjusted it to the spec'd 42psi I get the higher fuel trims as expected (needs to add even more fuel). It's also odd to watch my O2 voltages. They go from really lean to really rich - not much in the middle. Something is making dramatic knee-jerk corrections.

Now, as I understand it - this is usually indicative of a vacuum leak. This is because more air is entering the system than the ECU is anticipating and the O2 sensor reading is lean. So the ECU adds more fuel (via short term fuel trim) to attempt to correct this lean condition.

I'm REALLY sure I don't have a leak of any kind. A nice snapon smoke machine and my pressure test are pretty conclusive. So, either one of two things is happening - more air is coming in than the tune anticipates OR the tune is just really crappy and not delivering enough fuel given the larger injectors (could be altitude but I'm sure people with Stage 2 kits live in Denver and other high elevation places).

Now, as a logical person, I'm trying to think that if Active had this problem a lot in their Stage 2 kits we'd hear about it. But, I bet they sell a lot of Stage 1 and Stage 2 kit's - and perhaps even some Stage 1 - Stage 2 upgrades - and not as many Stage 1.5 -> 2 upgrade "kits". I'm guessing the issue is here somewhere. They send something or something is different when you get a full Stage 2 kit vs the Stage 1.5 upgrade.

I went from a Gen 6 Stage 1.5 kit to a Gen 7 Stage 2 kit. This included the new fuel system (fuel rail, lines, inline fuel pump), meth system, pully, larger injectors, and a new "log style" intake manifold. I took my bypass valves off my old square Gen 6 manifold and put them on the new one.

The only theory I have now is those bypass valves. I'm running a much smaller pulley on that supercharger now and it's positively pressurizing the intake a bit more than it used too (I assume). If those bypass valves are still setup for X (from the 1.5) - could I be over-over pressuring the manifold and adding more air than it anticipates? Other than that, I can only assume a bad base tune. Ugh.

What else could go wrong or be missed when you go from 1.5->2 instead of starting at 2 or going from 1-2? I'm on my 6th idle correction tune with no real difference (the ECU still has to add up to 40% fuel).
triksterut is offline   Reply With Quote
Old 10-21-2012, 02:32 PM   #23
LilFlip#2
Registered User
 
Join Date: Jan 2003
Location: Northridge
Posts: 1,104
My Ride: not a bimmer
Maybe go back to the 6 generation manifold to see if that helps
__________________
2005 IB ZCP - AA 1.5 HKS - Work VSXX - 430 RWHP 91 Octane


LilFlip#2 is offline   Reply With Quote
Old 10-25-2012, 08:38 AM   #24
BMtroubleYou
Registered User
 
Join Date: Jan 2009
Location: junction City, KS
Posts: 52
My Ride: E46 M3, 05 X5, S4 B6
Gentlemen, I having the same problem with my VF kit, it is idling at AFR 17... I had a member explain to me that is the TPS, and to best deal with them is to change both of them at the same time. I will do this some time next week. I will keep you all updated.
__________________


Currently
04 M3 E46 500+ WHP on Race Gas!
05 X5 E53 4.8is Wife's
04 AUDI S4 B6 Winter Vehicle DD

RIP
80 VW Rabbit
85 Toyota Corolla 1.8
85 Mazda RX-7 GSL-SE
87 Mazda Twin Turbo RX-7
97 BMW 328is E36 "fully modded" Super charged
99 Jetta
02 Jetta
03 BMW 325 IS
03 VW GTI 20th Anniversary
04 Toyota 4 Runner SR-5
04 Audi Quattro 1.8 Turbo
06 BMW 530i
BMtroubleYou is offline   Reply With Quote
Old 10-25-2012, 09:33 AM   #25
NickG
Registered User
 
Join Date: Sep 2005
Location: South Florida
Posts: 186
My Ride: 2001 330ci turbo
Does this Stage2 tune use the MAF, or is it alpha-n? What about the Stage1.5 tune?

Also, what spark plug gap are you running?
__________________
Nick
2001 330ci Turbo

Last edited by NickG; 10-25-2012 at 09:36 AM.
NickG is offline   Reply With Quote
Old 10-25-2012, 12:02 PM   #26
Sweed
Registered User
 
Join Date: Oct 2007
Location: Red Deer, Canada
Posts: 89
My Ride: 07 6.0L / 04 M3
Quote:
Originally Posted by NickG View Post
Does this Stage2 tune use the MAF, or is it alpha-n? What about the Stage1.5 tune?

Also, what spark plug gap are you running?
I know when I installed my Stage 2 last year it was Alpha-N. But I went straight to stage 2 and had no issue's, it seems most of these latest issue's are with previous values in a previous tune.

__________________
AA HKS Stg 2 / Nitrous Express
Sweed is offline   Reply With Quote
Old 10-25-2012, 02:43 PM   #27
EpicM3SC
Registered User
 
Join Date: Aug 2011
Location: France
Posts: 16
My Ride: Supercharged M3
Quote:
Originally Posted by triksterut View Post
Man, I'm really getting frustrated. HPF with an AEM is sounding pretty damn good right about now.

It's funny 'cause I was going for a HPF Stage 2 kit but I canceled my order at the last minute thinking that I should just upgrade to AA Stage 2 as I already had the Stage 1.5 installed.

In the end I think I made a big mistake simply to spare some money, and I start to regret my decision ...

AA doesn't respond to my emails, so I guess I will need to find a tuner in France capable of tuning a supercharged M3 with stock DME, which is rare (and will probably cost me much ...)

Last edited by EpicM3SC; 10-25-2012 at 11:27 PM.
EpicM3SC is offline   Reply With Quote
Old 10-25-2012, 04:58 PM   #28
jonny_blaze
Registered User
 
Join Date: Jun 2010
Location: Mississauga
Posts: 80
My Ride: E46 M3 AA HKS S/C
When I got my 7th gen manifold I noticed it was such a tight fit to get it down. Make sure none of the hoses are kinked at all. Not running an oil catch can can deteriorate these hoses and can collapse easily. Why you would see a change in its behaviour is the fluctuation of size of the hose.

Re check the hardware and possibly change those TPS. The BOV should be flowing at idle, do not close them.

The stage 1-1.5-2 bump up kits are all the same. The difference is with 1.5 you have the intercooler already, possibly injectors opposed to going from 1-2 directly.

Last edited by jonny_blaze; 10-25-2012 at 05:11 PM.
jonny_blaze is offline   Reply With Quote
Old 10-25-2012, 11:31 PM   #29
LilFlip#2
Registered User
 
Join Date: Jan 2003
Location: Northridge
Posts: 1,104
My Ride: not a bimmer
i really dont think this is a a tunning issue.
__________________
2005 IB ZCP - AA 1.5 HKS - Work VSXX - 430 RWHP 91 Octane


LilFlip#2 is offline   Reply With Quote
Old 10-25-2012, 11:57 PM   #30
EpicM3SC
Registered User
 
Join Date: Aug 2011
Location: France
Posts: 16
My Ride: Supercharged M3
Is it possible to revert to Stage 1.5 but keeping most of the Stage 2 hardware mounted ?

Like juste changing :
- The injectors
- The SC Pulley and belt
- The tune
- Disabling the meth
EpicM3SC is offline   Reply With Quote
Old 10-26-2012, 01:43 PM   #31
jonny_blaze
Registered User
 
Join Date: Jun 2010
Location: Mississauga
Posts: 80
My Ride: E46 M3 AA HKS S/C
Quote:
Originally Posted by EpicM3SC View Post
Is it possible to revert to Stage 1.5 but keeping most of the Stage 2 hardware mounted ?

Like juste changing :
- The injectors
- The SC Pulley and belt
- The tune
- Disabling the meth
What about the fuel system? Are you going to run the secondary system with the smaller injectors? What you are going to do is create more of a headache.

What I would suggest doing is going through the whole install step by step again to make sure it is all done right.

Lilflip, definitely agree - it does not sound like a tuning issue as I myself sold and installed tons of these kits myself (and own one).
jonny_blaze is offline   Reply With Quote
Old 10-26-2012, 02:53 PM   #32
Andrew@Activeautowerke
Sponsor
 
Join Date: Nov 2011
Location: Miami FL
Posts: 51
My Ride: 135 Fbo+meth & E85
Where did you send an email to? I have not seen anything come through about this issue.. Please send an email to Zak@activeautowerke.com he will be more than willing to help rectify this situation.
__________________

Email:AFish@ActiveAutowerke.com |Phone:305-233-9300 Ext:227 |Web: www.ActiveAutowerke.com

Authorized Dealer Of | Stop Tech | Brembo | KW Suspensions | Jrz Suspensions | BC Wheels | BC Suspensions | Strasse Forged Wheels | Michelin Tires
Andrew@Activeautowerke is offline   Reply With Quote
Old 10-26-2012, 05:01 PM   #33
triksterut
Registered User
 
Join Date: May 2009
Location: Utah
Posts: 62
My Ride: 05 M3 Vert
It's ALIVE! It works perfectly and it was exactly the first issue that A55A55IN pointed out - adaptations. I think it's a battle of ignorance. I was ignorant of exactly which adaptations to clear, the European auto shop that I had clear them with the Motec and Autologic systems either didn't know, or the machines were incapable of clearing these adaptations. Then, the BMW dealership must not have known which adaptations to clear.

Basically, I spent $200 at various shops and the dealership trying to get these things cleared. Active sent me one of their actual laptops - which turns out to be a standard PC with a USB-CAN adapter running an older version of the BMW software on it. Plugged it in, hit "Reset Adaptations" and we were in business.

Hard to believe they can make this kind of difference. At idle, running the Stage 1.5 tune I was seeing (+)30-40% fuel trims. After the reset, (-)25-30%. Seeing this, I flashed it back to the stock Stage 2 tune and am now seeing (-)4-10% even under load. No rough idle, and it comes back to idle no problems (doesn't die).

Thanks to Zak over at Active for letting me keep him on the phone for an hour on Friday evening. Also - I've never had Zak not respond to an email or a phone call. He's on top of it. Going to arrange some dyno time this week and get it final tuned. I'll keep you guys updated.
triksterut is offline   Reply With Quote
Old 10-26-2012, 06:14 PM   #34
AMG-ETR
///AMG ETR
 
AMG-ETR's Avatar
 
Join Date: Mar 2006
Location: Toronto
Posts: 2,259
My Ride: S54B32 On Boost
Send a message via MSN to AMG-ETR
Glad to hear it worked out! Enjoy your beast now.
__________________


AMG-ETR is offline   Reply With Quote
Old 10-27-2012, 03:09 PM   #35
triksterut
Registered User
 
Join Date: May 2009
Location: Utah
Posts: 62
My Ride: 05 M3 Vert
Anyone looking to take care of this yourselves (meaning clear your adaptations) - just go look here for installing the INPA software (older BMW software). This is all you need to clear the pesky adaptations. That, and a $30 cable from ebay (just search for INPA BMW USB and you'll get a list).

http://www.bimmerforums.co.uk/forum/...64bit-t103023/
triksterut is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 07:59 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use