Welcome to the North American Subaru Impreza Owners Club Tuesday September 2, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning > UTEC

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, 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 free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 09-25-2006, 11:33 PM   #1
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default Flashing cel with cel disabled.

I disabled my cel through the utec. I know the utec will flash the cel if somethin big happens. So I just got done with the fmic install today. Having trouble hitting target boost. Cranked on the aux boost controller but still having trouble. So I'm getting on a side road, open her up in second, shift into third still WOT, and then I get the flashing cel. Can anybody shed light on this subject?
* Registered users of the site do not see these ads.
L80Killa87 is offline   Reply With Quote
Old 09-25-2006, 11:41 PM   #2
2phless
Scooby Specialist
 
Member#: 69343
Join Date: Aug 2004
Chapter/Region: South East
Location: 'tween Lewisville&Clemmons NC
Vehicle:
1998 TransAm cnvrtbl
Black

Default

That is knock.
2phless is offline   Reply With Quote
Old 09-25-2006, 11:48 PM   #3
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default

Eeeeeeeek! What should I do? Any clue why it happened?
L80Killa87 is offline   Reply With Quote
Old 09-26-2006, 08:10 AM   #4
gpatmac
Scooby Guru
 
Member#: 18446
Join Date: May 2002
Chapter/Region: MAIC
Location: Alexandria, VA
Vehicle:
2002 WRX wagon
psm

Default

Octane is too low.* Richen up your fuel or reduce timing. Reduce boost while you're at it and then when you've worked out your leanness issues, you can retune boost.

The CEL (when disabled) is now your 'knock light'. It'll flash when you knock. When you're tuning, immediately get off the gas when it flashes then open up your laptop and find in your log where you had instances of knock, locate that area in your fuel or timing maps and make those values less aggressive.

*I'm not saying you're not using high enough octane. What I'm saying is at that point where you're knocking, the octane didn't prevent the knock and so you have to manually reduce timing or increase the amount of gasoline in your mixture.
gpatmac is offline   Reply With Quote
Old 09-26-2006, 08:45 AM   #5
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default

Hmmmm interesting. Yeah cuz I'm using 93, unless I got a bad batch or something. Alright I'll give it a shot, thanks a bunch!
L80Killa87 is offline   Reply With Quote
Old 09-26-2006, 10:36 AM   #6
gpatmac
Scooby Guru
 
Member#: 18446
Join Date: May 2002
Chapter/Region: MAIC
Location: Alexandria, VA
Vehicle:
2002 WRX wagon
psm

Default

Just to clarify. Your gasoline octane is most likely ok. It's not, though, at that point on the rpm band/engine load where you happened to knock. In other words, gas ok, air to fuel ratio is not.
gpatmac is offline   Reply With Quote
Old 09-26-2006, 01:01 PM   #7
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default

Ah ok. Well aem uego should be here in like a week. So once I get that i'll install her and run uteclogger and get the afr where they need to be.
L80Killa87 is offline   Reply With Quote
Old 09-27-2006, 05:55 PM   #8
AREA1320
Former Vendor
 
Member#: 112508
Join Date: Apr 2006
Location: Easton, PA
Default

check your plugs as well.. we have been seeing instances of knock with crappy old plugs.
AREA1320 is offline   Reply With Quote
Old 09-27-2006, 06:11 PM   #9
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default

I'm running stock heat range iridium ix plugs that are only a few months old. Since I've been bumping up the horsepower lately and I see a 20g in my future I might upgrade to the colder heat range. Think this will help at all being a colder heat range?
L80Killa87 is offline   Reply With Quote
Old 09-27-2006, 06:16 PM   #10
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default

Oh, for what its worth, it only started to do this AFTER the fmic install. And to add to the problems, it can't hold stable boost, i turned up the aux boost controller for the utec to compensate for more pressure loss. It won't hold stable boost now. maybe my solenoid is maxed out?
L80Killa87 is offline   Reply With Quote
Old 09-27-2006, 08:30 PM   #11
hippy
Scooby Specialist
 
Member#: 36528
Join Date: May 2003
Location: florida
Vehicle:
2002 Impreza Wrx
Silver

Default

maybe your bov is openning?
hippy is offline   Reply With Quote
Old 09-27-2006, 10:15 PM   #12
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default

Its always worked fine before, its a modded stocker too, so it should work real good. ALSO, another added note. Getting on the car in first in second, yields no flashing cel (knock), but when I shift into 3rd and the boost builds up BINGO theres my knock. Any reason why this is?
L80Killa87 is offline   Reply With Quote
Old 09-28-2006, 05:16 AM   #13
hippy
Scooby Specialist
 
Member#: 36528
Join Date: May 2003
Location: florida
Vehicle:
2002 Impreza Wrx
Silver

Default

post a log
hippy is offline   Reply With Quote
Old 09-28-2006, 08:41 AM   #14
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default

alright, you want a log of like first through third?
L80Killa87 is offline   Reply With Quote
Old 09-28-2006, 05:42 PM   #15
hippy
Scooby Specialist
 
Member#: 36528
Join Date: May 2003
Location: florida
Vehicle:
2002 Impreza Wrx
Silver

Default

Any log showing the fluctuating boost, and possibly the knock. A full gear pull would be good, and 3 gears would be better. Don't reck your car trying to recreate the problem though. I just figured you might have a log laying around.

peace
hippy is offline   Reply With Quote
Old 09-28-2006, 06:39 PM   #16
L80Killa87
Scooby Newbie
 
Member#: 111910
Join Date: Apr 2006
Location: Lansing, KS
Vehicle:
02 WRX
PSM

Default

Nah, I can do a 1-3 or at least 2-3 log tonight, I'm gonna lift when I hit knock in 3rd though.
L80Killa87 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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 Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help! CEL with CEL fix electricpork Factory 2.0L Turbo Powertrain 3 12-31-2004 03:56 PM
CEL with flashing cruise light help needed Wombat North STi Forum Archive 3 07-05-2003 01:10 PM
flashing CEL with unichip OneArmedScissor Factory 2.0L Turbo Powertrain 4 05-09-2003 12:01 PM
flashing cel with utec, what could be causing it? datdudedennis Engine Management & Tuning 7 04-07-2003 05:16 PM
Flashing cel with Unichip TurismoLou Factory 2.0L Turbo Powertrain 10 05-09-2002 12:08 PM


All times are GMT -4. The time now is 09:14 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.