Welcome to the North American Subaru Impreza Owners Club Tuesday August 21, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
New England Subaru Impreza Club
Go Back   NASIOC > NASIOC Chapters > New England Impreza Club Forum -- NESIC

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 03-31-2004, 07:29 PM   #1
blindclown
Scooby Newbie
 
Member#: 18955
Join Date: May 2002
Chapter/Region: NESIC
Location: East Hartford, CT
Vehicle:
2005 Impreza WRX STi
Silver

Default Help! My car is having Issues. Please Look.

Well, I'm driving home from work tonight (rainy Day by the way), and I'm driving, everything seems fine and all of a sudden, my car starts to Jerk a bit....as if losing power. Well, after about a minute...mind you, I'm going at about 35 or 40 Mph, my care decides to shut off. The check engine light comes on...Well, it's always on because I seem to be missing some Cats.

Anyway, the car stalls. So I pull into a side street, and restart the car. It starts fine, but then shuts right off. Do it again...same thing. So this time I start it and rev it a bit...then it Idles okay. I'm literally 2 minutes from my house, so I start to drive again to get back to my house, and it starts to buck again. I pull into the lot, and park. Shut the car off. I then, wait for about 5 minutes, and restart the car...and it runs like a champ. For now!
Any Ideas? Recently I added a new GP moto shorty intake, and the TurboXS TMIC. The day after I installed these, the car sorta acted similar. Not with the bucking or Stalling, but I started it, and it stalled, and I started it again..it stalled.

So what might be causing this. Here are my mods if that helps.

Unichip
Turbo XS Turboback
VF30 Turbo
Turboxs TMIC
GP Moto Intake
Injectors, and Pump
Perrin Crank Pulley


Any suggestions or thoughts would help.
* Registered users of the site do not see these ads.
blindclown is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 03-31-2004, 07:31 PM   #2
ParagonWRX
Scooby Newbie
 
Member#: 45109
Join Date: Oct 2003
Default

Were you driving in standing water by chance? Have you driven the car since the day of the incident (unless that was today) and if so did you have the exact same problem?

Para
ParagonWRX is offline   Reply With Quote
Old 03-31-2004, 07:47 PM   #3
paultg
NASIOC Supporter
 
Member#: 437
Join Date: Oct 1999
Chapter/Region: NESIC
Location: Londonderry, NH
Vehicle:
'91 Miata MX5 (Red)
'09 Impreza OBS (Blk/Gry)

Default

Quote:
GP Moto Intake
On the older 2.5L cars the water could get in the intake via the hood scoop or hood vents and damage the mass air flow meter.

You can unplug it and drive in "limp mode" or something like that.

Paul G.
paultg is offline   Reply With Quote
Old 03-31-2004, 07:57 PM   #4
03WRXMA
Scooby Guru
 
Member#: 35081
Join Date: Apr 2003
Chapter/Region: NESIC
Location: CT
Vehicle:
2012 WRX
WRB

Default

Does it drive under boost? Or make any weird noises?
03WRXMA is offline   Reply With Quote
Old 03-31-2004, 08:18 PM   #5
totoherbs
Scooby Guru
 
Member#: 7321
Join Date: Jun 2001
Chapter/Region: NESIC
Location: waltham, ma
Vehicle:
.... 122 IggPoints
Work... ahhh... so tired.

Default

Could be the pulley, could be the intake and I/C with out tuneing for them, could be the intake sucked in water.... could be a lot of things.

Take off the intake, reset the ecu and see what happens. If it still acts funny pull the I/C... then the pulley and so on.
totoherbs is offline   Reply With Quote
Old 03-31-2004, 09:38 PM   #6
lagger
Scooby Newbie
 
Member#: 32522
Join Date: Feb 2003
Location: Western MA
Default

could it possibly be a coil pack going bad? i know vw's have issues with the housings cracking, and when it's raining, they tend to arc, and make the car run as you described. sometimes they can even pop the hood and see where it's arcing from/to.
lagger is offline   Reply With Quote
Old 03-31-2004, 10:36 PM   #7
redobs
NASIOC Supporter
 
Member#: 1501
Join Date: May 2000
Chapter/Region: NESIC
Location: Nashua, NH
Vehicle:
2009 WRX wagon
Dark grey

Default

Do you have an up-pipe?
redobs is offline   Reply With Quote
Old 04-01-2004, 08:27 AM   #8
blindclown
Scooby Newbie
 
Member#: 18955
Join Date: May 2002
Chapter/Region: NESIC
Location: East Hartford, CT
Vehicle:
2005 Impreza WRX STi
Silver

Default

Yes I have an up-pipe. Forgot to mention that.

I'm thinking it may be the MAF sensor. I plan to take the Intake off, and reset the ECU first. See it that does it.

No weird noises or anything like that though, and yes it drives under boost. Definately wasn't driving in Standing water either.

Any other suggestions would be helpful as well.
blindclown is offline   Reply With Quote
Old 04-01-2004, 10:08 AM   #9
03WRXMA
Scooby Guru
 
Member#: 35081
Join Date: Apr 2003
Chapter/Region: NESIC
Location: CT
Vehicle:
2012 WRX
WRB

Default

Quote:
Originally posted by blindclown
Yes I have an up-pipe. Forgot to mention that.

I'm thinking it may be the MAF sensor. I plan to take the Intake off, and reset the ECU first. See it that does it.

No weird noises or anything like that though, and yes it drives under boost. Definately wasn't driving in Standing water either.

Any other suggestions would be helpful as well.
Try cleaning the MAF, and do you have a resistor mod in for the uppipe EGT?
03WRXMA is offline   Reply With Quote
Old 04-01-2004, 10:17 AM   #10
CTKAG
Scooby Specialist
 
Member#: 15001
Join Date: Feb 2002
Chapter/Region: NESIC
Location: Manchester CT or at any track
Vehicle:
STi V8 Spec C Power
NESIC TrackH0z # 10

Default

Yes, definitely check your resistor mod (if you have one) or get one if you don't - a failed EGT probe will give similar symptoms.

-Keith-
CTKAG is offline   Reply With Quote
Old 04-01-2004, 12:57 PM   #11
blindclown
Scooby Newbie
 
Member#: 18955
Join Date: May 2002
Chapter/Region: NESIC
Location: East Hartford, CT
Vehicle:
2005 Impreza WRX STi
Silver

Default

How do I clean the MAF? I've never heard of that.

I have no resister mods in the Uppipe. Just a gutted stock uppipe.
blindclown is offline   Reply With Quote
Old 04-01-2004, 02:29 PM   #12
03WRXMA
Scooby Guru
 
Member#: 35081
Join Date: Apr 2003
Chapter/Region: NESIC
Location: CT
Vehicle:
2012 WRX
WRB

Default

Quote:
Originally posted by blindclown
How do I clean the MAF? I've never heard of that.

I have no resister mods in the Uppipe. Just a gutted stock uppipe.
hmm.... Do you have any CEL's? If you do the EGT probe could be shot if you still have it in the pipe.

To clean the MAF, do a search , but basically, remove the sensor from the car CAREFULLY, dont touch the wire in it, place in a bag, and spray with non-clorinated brake cleaner.


-Dave
03WRXMA is offline   Reply With Quote
Old 04-01-2004, 02:51 PM   #13
coyote73176
Scooby Specialist
 
Member#: 36576
Join Date: May 2003
Chapter/Region: Tri-State
Location: New Fairfield, CT
Vehicle:
2k2 WRB wrx WAGON
16G'd & FMIC'd

Default

definitely check the MAF, its happened to me with a short ram intake. Was raining and the filter got wet. Had the same exact symptoms, but as soon I noticed the bucking, turned around , went home (30 seconds) and put my stock air filter box back on, and dried the maf. This cured the problem.

gotta like the run on sentences
coyote73176 is offline   Reply With Quote
Old 04-01-2004, 04:52 PM   #14
blindclown
Scooby Newbie
 
Member#: 18955
Join Date: May 2002
Chapter/Region: NESIC
Location: East Hartford, CT
Vehicle:
2005 Impreza WRX STi
Silver

Default

Hmmm, I'm gonna take the intake off, and start with that. I can understand the bucking issue with the MAF, but stalling on me while traveling about 20mph.

Thanks for all the replies.
If anyone has anything else to suggest, I'm all ears. (or eyes in this case)

Brian
blindclown is offline   Reply With Quote
Old 04-01-2004, 04:56 PM   #15
03WRXMA
Scooby Guru
 
Member#: 35081
Join Date: Apr 2003
Chapter/Region: NESIC
Location: CT
Vehicle:
2012 WRX
WRB

Default

Quote:
Originally posted by 03n00bMA
hmm.... Do you have any CEL's? If you do the EGT probe could be shot if you still have it in the pipe.
So is the EGT sensor in your UP, or not?

If it is, it can cause the car to go into limp home mode if the probe has gone bad....
03WRXMA is offline   Reply With Quote
Old 04-01-2004, 05:33 PM   #16
wrk king
Scooby Newbie
 
Member#: 17832
Join Date: Apr 2002
Chapter/Region: MAIC
Location: Falls Church, VA
Vehicle:
2004 BAJA Turbo MBP
Metallic Blue Pearl

Default

Was your unichip retuned after you added the I/C, intake and so on? WHat is it tuned for...this could cause that problem..
wrk king is offline   Reply With Quote
Old 04-02-2004, 08:43 AM   #17
blindclown
Scooby Newbie
 
Member#: 18955
Join Date: May 2002
Chapter/Region: NESIC
Location: East Hartford, CT
Vehicle:
2005 Impreza WRX STi
Silver

Default

Quote:
Originally posted by 03WRXMA
So is the EGT sensor in your UP, or not?

If it is, it can cause the car to go into limp home mode if the probe has gone bad....
I'm not sure. Like I said it was a gutted up pipe, and I haven't added any EGT guages or anything of the sort if that's what you mean. Not sure I can anser that question or not. If the car comes stock with an EGT sensor there, then I would think it's still there.
blindclown is offline   Reply With Quote
Old 04-02-2004, 08:46 AM   #18
blindclown
Scooby Newbie
 
Member#: 18955
Join Date: May 2002
Chapter/Region: NESIC
Location: East Hartford, CT
Vehicle:
2005 Impreza WRX STi
Silver

Default

Quote:
Originally posted by wrk king
Was your unichip retuned after you added the I/C, intake and so on? WHat is it tuned for...this could cause that problem..
The unichip hasn't been re-tuned as of yet. I'm saving to get the UTEC. I wouldn't think adding a Top Mount, or an intake would cause such a problem with the unichip. But I guess there's been some stranger things that have happened to other people.

The Chip was custom mapped at XX Tuning last fall by Edwin. It ran perfect after I drove off. I had all these mods on except the Intake, and I/C.
blindclown is offline   Reply With Quote
Old 04-02-2004, 09:58 AM   #19
wrk king
Scooby Newbie
 
Member#: 17832
Join Date: Apr 2002
Chapter/Region: MAIC
Location: Falls Church, VA
Vehicle:
2004 BAJA Turbo MBP
Metallic Blue Pearl

Default

Quote:
Originally posted by blindclown
The unichip hasn't been re-tuned as of yet. I'm saving to get the UTEC. I wouldn't think adding a Top Mount, or an intake would cause such a problem with the unichip. But I guess there's been some stranger things that have happened to other people.

The Chip was custom mapped at XX Tuning last fall by Edwin. It ran perfect after I drove off. I had all these mods on except the Intake, and I/C.
I plugged in a unichip on my car with intake and I/C, pully, TBE and the car did exactly what you are mentioning...You never know...considering you now have more air flowing and more colder air charging..it could be
wrk king is offline   Reply With Quote
Old 04-02-2004, 12:05 PM   #20
jbogli
Scooby Specialist
 
Member#: 26006
Join Date: Oct 2002
Location: Manchester,CT
Vehicle:
2002 Impreza WRX
Black

Default fuel

I am wondering if you are not getting enough fuel. When you turn your car on and then it stalls that seems like not enough fuel to me. This happened to me(turn on and stall) and it was not enough fuel. How does the car idle(rough)? If you give it gas before you stall will it keep running? You added two mods that have potential to lean you out. I think the maf check is a great idea and i would check that. This happens to you at idle and when on the throttle? When does it happen when on throttle(rpm range/gear)?
Justin
jbogli is offline   Reply With Quote
Old 04-02-2004, 12:41 PM   #21
blindclown
Scooby Newbie
 
Member#: 18955
Join Date: May 2002
Chapter/Region: NESIC
Location: East Hartford, CT
Vehicle:
2005 Impreza WRX STi
Silver

Default Re: fuel

Quote:
Originally posted by jbogli
I am wondering if you are not getting enough fuel. When you turn your car on and then it stalls that seems like not enough fuel to me. This happened to me(turn on and stall) and it was not enough fuel. How does the car idle(rough)? If you give it gas before you stall will it keep running? You added two mods that have potential to lean you out. I think the maf check is a great idea and i would check that. This happens to you at idle and when on the throttle? When does it happen when on throttle(rpm range/gear)?
Justin
The car Idles pretty low, it's not a rough idle. Sometimes it feels like it's almost going to stall, then the idle kicks in a bit higher. this is obviously when the car is warm, and it not moving.
And yes, if I give it gas before it stalls it will keep running.

The studdering seemed to happen when driving, almost like it was chirping. Sort of a jerking motion. Then would run fine for like a few seconds, then start jerking again. Then it finally just stalled while driving at like 20 + mph.

I haven't driven the car since this has happened. I plan to do some troubleshooting over the weekend, where it's safe to brake down if need be. Maybe it's something to do with the fuel or something. Injector problem maybe. Don't know....YET!
blindclown is offline   Reply With Quote
Old 04-11-2004, 10:56 PM   #22
mtb_dude
Scooby Specialist
 
Member#: 12619
Join Date: Nov 2001
Chapter/Region: Tri-State
Location: LI, NY
Vehicle:
02 WRX Wagon
#47 SM w/RA gears

Default

I'm having a similar issue, the only thing I've done since this started was replacing the plugs with one step colder platinums, and installed a UR crank pulley. The idle drops and appears to want to stall only to be saved at the last second. Sometimes it idles rough for a few minutes, then idles perfectly smooth right after that. I also couldn't start the car on the first crank today for the first time since about 4k miles. Cranked for about 3 seconds, paused, cranked again for about 3 seconds and it started just as I was about to give up.
mtb_dude is offline   Reply With Quote
Old 04-12-2004, 02:12 AM   #23
legacy2003
Scooby Specialist
 
Member#: 38338
Join Date: Jun 2003
Chapter/Region: MAIC
Location: Washington, DC Metro
Vehicle:
2003 Outback Sdn H6
Black

Default

my car did somethignlike that, it was the alternator.
legacy2003 is offline   Reply With Quote
Old 04-12-2004, 09:38 AM   #24
blindclown
Scooby Newbie
 
Member#: 18955
Join Date: May 2002
Chapter/Region: NESIC
Location: East Hartford, CT
Vehicle:
2005 Impreza WRX STi
Silver

Default

Quote:
Originally posted by legacy2003
my car did somethignlike that, it was the alternator.
HMMMM, There might be somthing to that. Now that I think of it, the day when my car stalled, and was jumping a bit, it was raining, and I had like Everything running,.....and I have a 12" sub in the back sucking juice too. I wonder.

Note: I did decide to clean the MAF, and also remove the After market Short Ram intake, and put the stocker back on. Since this was done, my car has ran perfect. However, It hasn't rained all that much to the point where I can test the above theory for the alternator. I'm looking to debug this ASAP (Jeeze, it doesn't show too much like I work with programming does it?)

I want to get my car tuned to the new UTEC I just purchased. I'd like to use the intake when tunned, but if that is the problem, then obviously it would be a bad Idea.
blindclown is offline   Reply With Quote
Old 04-12-2004, 10:02 AM   #25
mtb_dude
Scooby Specialist
 
Member#: 12619
Join Date: Nov 2001
Chapter/Region: Tri-State
Location: LI, NY
Vehicle:
02 WRX Wagon
#47 SM w/RA gears

Default

Yeah that alternator tip sounds pretty good, makes sense since i have the underdrive pulley now. I should also check the belt tension, I think the new belt might have stretched just a touch it sometimes squeals for about a 1/2 second on startup.
mtb_dude 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
my car is having prob. starting...any ideas? m3atwad Service & Maintenance 6 06-18-2008 02:53 AM
car is having issues starting Jared703 Service & Maintenance 5 07-22-2005 01:17 PM
Car is having issues.... boiling antifreeze.... Texas25RS Texas Impreza Club Forum -- TXIC 11 12-27-2003 08:03 PM
HELP my car is down and i have to work in teh morn! [27] Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 26 10-03-2003 03:33 PM
my car is having issues:) YaZahX Tri-State Area Forum 9 06-16-2003 10:29 PM

All times are GMT -4. The time now is 11:40 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.