GOLFMK7
GOLFMK6
GOLFMKV
VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com



Go Back   VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com > Technical Topics > GTI 2.0T Engine / Drivetrain / Exhaust / Tunes

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-25-2011, 02:07 PM   #1
twenzel
Autocross Champion
 
Drives: CSG Golf R
Join Date: Jan 2011
Location: AustinTX
Posts: 118
My GTI is idling rough. Advice?

Hey folks, need some help. Last night, I was driving normally right after filling up with 93 oct Shell and when I stopped at a light the car stalled. It started right back up and was idling like you see it in the video I've linked. It seems the car drives normal most of the time but I started to get on it it acts up again. Also the exhaust smells like the car is running very rich while the rough idle is present. I've done the throttle body alignment and there are NO CODES present. I am also not blipping the throttle, it is doing that on its own.

Mods:
Carbonio Intake
EuroJet TBE

Any advice is appreciated.

http://www.youtube.com/watch?v=qsrxuJxLAQA

Last edited by twenzel; 10-26-2011 at 07:29 AM.
twenzel is offline   Reply With Quote
Old 10-25-2011, 02:12 PM   #2
HatchFanatic06
Rally Car Newbie
 
HatchFanatic06's Avatar
 
Drives: 2014 STI Hatchback
Join Date: Dec 2010
Location: Tucson, AZ
Posts: 270
Are the rpms surging? or were you pressing the gas?

If your rpms are surging and having problems with stalling a potential issue could be your IAC valve is dirty (i had a similar problem on an older car awhile back). Someone posted a similar problem as you and it turned out that his APR stg 2 CAI was disconnected at the rear. Just an idea for you to check.

*correction* I don't believe our cars have an IAC (think that was an ODB1 feature.) To be honest if this is the case i'm not sure what took over its function maybe within the throttle body itself. Hopefully someone more knowledgeable chimes in here.
__________________

Last edited by HatchFanatic06; 10-25-2011 at 02:25 PM.
HatchFanatic06 is offline   Reply With Quote
Old 10-25-2011, 02:14 PM   #3
twenzel
Autocross Champion
 
Drives: CSG Golf R
Join Date: Jan 2011
Location: AustinTX
Posts: 118
Quote:
Originally Posted by HatchFanatic06 View Post
Are the rpms surging? or were you pressing the gas?

If your rpms are surging and having problems with stalling a potential issue could be your IAC valve. Someone posted a similar problem as you and it turned out that his APR stg 2 CAI was disconnected at the rear. Just an idea for you to check.
The RPMs were surging, I wasnt touching the pedal. Thanks for the quick response. I'll check to make sure all connections on the intake are tight.
twenzel is offline   Reply With Quote
Old 10-25-2011, 02:24 PM   #4
kashak
FIA World Rally Car Champion
 
kashak's Avatar
 
Drives: 2011 GTI | 2014 Tiguan 4m
Join Date: Feb 2011
Location: Toronto
Posts: 652
I had funny idles, turned out to be faulty intake manifold - got it replaced under warranty. Car smelled like catless too. It's a TSB and I suggest you visit your dealership to get it fixed.
__________________
GT28RS | APR tune | Garbagebend | Carbonio | Billy Boat | HPA | Labonte | Öhlins | OZ | H2Sport
kashak is offline   Reply With Quote
Old 10-25-2011, 02:27 PM   #5
HatchFanatic06
Rally Car Newbie
 
HatchFanatic06's Avatar
 
Drives: 2014 STI Hatchback
Join Date: Dec 2010
Location: Tucson, AZ
Posts: 270
Quote:
Originally Posted by twenzel View Post
The RPMs were surging, I wasnt touching the pedal. Thanks for the quick response. I'll check to make sure all connections on the intake are tight.
Do you have a scanner? do you know if your throwing a soft code? might be helpful in attempting to find the problem
__________________
HatchFanatic06 is offline   Reply With Quote
Old 10-25-2011, 02:36 PM   #6
twenzel
Autocross Champion
 
Drives: CSG Golf R
Join Date: Jan 2011
Location: AustinTX
Posts: 118
I have a code scanner built into the P3 Vent gauge. Its not showing any codes..

I just tried starting again and it started but the rough idle is still happening. It sounds like there is also a super high pitch tone coming from the intake manifold as the rpms drop. Almost electronic sounding. It's a bit hard to explain.
twenzel is offline   Reply With Quote
Old 10-25-2011, 02:42 PM   #7
ehancock
FIA World Rally Car Newbie
 
Drives: 09 GTI
Join Date: Sep 2011
Location: MI
Posts: 460
Can't watch your video right now, but i've been having rough idle on cold starts for a few weeks, now it turned into severe miss under load and i finally threw a code. One of my coilpacks is failing. Might want to check those out
ehancock is offline   Reply With Quote
Old 10-25-2011, 02:46 PM   #8
jmlivid
FIA World Rally Car Champion
 
jmlivid's Avatar
 
Drives: 2011 2 door CSG GTI
Join Date: Sep 2010
Location: edmonton
Posts: 684
Is the electric sound a beeping? like random sequence morse code? I only have an intake but when I start it up in the morning it does this soft beeping sound.
__________________
2011 2 Door CSG GTI, Sunroof, Nav, DSG. Modshack, Some cosmetic, Some VAG, no tune....yet.
jmlivid is offline   Reply With Quote
Old 10-25-2011, 02:47 PM   #9
fatty
Formula 5000 Driver
 
fatty's Avatar
 
Drives: gti 2011
Join Date: Nov 2010
Location: Massachusetts - Connecticut
Posts: 1,983
try taking another vid. this time close the doors so the annoying chime goes away and make sure the video shows your feet is no where near the gas pedal.

save it on your laptop and bring it to the dealership but they're probably gonna claim your p3 boost gauge is the problem
__________________
VCDS available to locals http://golfmk6.com/forums/showthread.php?t=18285
fatty is offline   Reply With Quote
Old 10-25-2011, 02:48 PM   #10
twenzel
Autocross Champion
 
Drives: CSG Golf R
Join Date: Jan 2011
Location: AustinTX
Posts: 118
Quote:
Originally Posted by jmlivid View Post
Is the electric sound a beeping? like random sequence morse code? I only have an intake but when I start it up in the morning it does this soft beeping sound.
kinda like that yes but I wouldnt stay its any pattern, It makes the tone when the RPMS drop then stops when the RPMs surge.
twenzel is offline   Reply With Quote
Old 10-25-2011, 02:49 PM   #11
twenzel
Autocross Champion
 
Drives: CSG Golf R
Join Date: Jan 2011
Location: AustinTX
Posts: 118
Quote:
Originally Posted by fatty View Post
try taking another vid. this time close the doors so the annoying chime goes away and make sure the video shows your feet is no where near the gas pedal.

save it on your laptop and bring it to the dealership but they're probably gonna claim your p3 boost gauge is the problem
P3 Boost guage doesnt use a boost tap, it plugs into the OBDII port and reads boost from the ECU. I'll try capturing better video.
twenzel is offline   Reply With Quote
Old 10-25-2011, 03:16 PM   #12
DRedman45
Formula 3000 Champion
 
DRedman45's Avatar
 
Drives: UG '10 4dr gti(sold)-E86 //M coupe
Join Date: Jun 2010
Location: Northern VA
Posts: 4,194
Send a message via AIM to DRedman45
sounds exactly like a vacuum leak...like kashak said the manifold is a possible culprit...there is a flapper in there and if the motor/sensors go bad it would idle with that surging, but go away at a higher rpms
__________________
I will miss my K04 gti
DRedman45 is offline   Reply With Quote
Old 10-25-2011, 04:02 PM   #13
twenzel
Autocross Champion
 
Drives: CSG Golf R
Join Date: Jan 2011
Location: AustinTX
Posts: 118
Here is a better video. http://www.youtube.com/watch?v=VHIkt3mrvnw

May be a few minutes before its available. I just uploaded.
twenzel is offline   Reply With Quote
Old 10-25-2011, 04:09 PM   #14
fatty
Formula 5000 Driver
 
fatty's Avatar
 
Drives: gti 2011
Join Date: Nov 2010
Location: Massachusetts - Connecticut
Posts: 1,983
Quote:
Originally Posted by twenzel View Post
P3 Boost guage doesnt use a boost tap, it plugs into the OBDII port and reads boost from the ECU. I'll try capturing better video.
I know but the dealership will still make the stupid warranty void claim. you'll see

2nd part of the video scared the shit out of me. I turned my volume up to hear your car idle while you were switching programs.

Show the video to a dealer before actually bringing it in
__________________
VCDS available to locals http://golfmk6.com/forums/showthread.php?t=18285
fatty is offline   Reply With Quote
Old 10-25-2011, 05:05 PM   #15
twenzel
Autocross Champion
 
Drives: CSG Golf R
Join Date: Jan 2011
Location: AustinTX
Posts: 118
the car threw some codes;
P0300 – Random/Multiple Cylinder Misfire Detected
P0301 – Cylinder 1 Misfire Detected
P0302 – Cylinder 2 Misfire Detected
P0303 – Cylinder 3 Misfire Detected
P0304 – Cylinder 4 Misfire Detected
twenzel is offline   Reply With Quote
Old 10-25-2011, 06:31 PM   #16
Gti For Me
FIA GT Champion
 
Gti For Me's Avatar
 
Drives: 2011 GTI APR K04 V.3.1
Join Date: Aug 2010
Location: 19720
Posts: 1,179
Quote:
Originally Posted by twenzel View Post
the car threw some codes;
P0300 – Random/Multiple Cylinder Misfire Detected
P0301 – Cylinder 1 Misfire Detected
P0302 – Cylinder 2 Misfire Detected
P0303 – Cylinder 3 Misfire Detected
P0304 – Cylinder 4 Misfire Detected

Either you have some bad gas since you just filled or injectors took a crap causing running rich/black smoke from tailpipe

Now if the car is not misfiring but runs good i suspect that your ignition coils are good.
Gti For Me is offline   Reply With Quote
Old 10-25-2011, 10:18 PM   #17
dallasjetfan
FIA World Rally Car Champion
 
Drives: 2013 VW CC
Join Date: Apr 2011
Location: Dallas
Posts: 551
I recently started having some issues when accelerating where the engine seems to bog down or misfire. No codes or anything. Hoping it is just bad gas since I have a long trip Friday.
dallasjetfan is offline   Reply With Quote
Old 10-25-2011, 10:47 PM   #18
fatty
Formula 5000 Driver
 
fatty's Avatar
 
Drives: gti 2011
Join Date: Nov 2010
Location: Massachusetts - Connecticut
Posts: 1,983
are the codes still there? I think you should take it in for the dealers to fix. I had a misfire once and that was caused by some seafoam treatment I tried on the car. Brought it to the dealer, they cleared the code and said everything was fine nbd.

For your case, you should show them the videos they should take care of you then unless for some reason they think you caused it
__________________
VCDS available to locals http://golfmk6.com/forums/showthread.php?t=18285
fatty is offline   Reply With Quote
Old 10-26-2011, 10:38 AM   #19
BigRobSA
FIA GT Newbie
 
BigRobSA's Avatar
 
Drives: 2010 Shadow Blue Metallic GTI
Join Date: Sep 2010
Location: Cedar Rapids, Iowa
Posts: 825
Send a message via AIM to BigRobSA
I had weird surging when my throttlebody took a shit at ~ 26k miles.

Warrantied by VW, since the electronics inside went to shit and not anything meth related.
__________________
2010 VW 2dr 6M GTI-Shadow Blue Metallic:
Dynaudio, Sunroof ,17" Denvers with all-seasons, Bi-Xenons,cloth (K04 & APR tune, APR intercooler, Devil's Own water/meth, USRT TB spacer with meth bung, custom 3" turbo-back,Forge Twintake, BSH throttle pipe, BSH Tq mount insert), Eurojet boost gauge in New South vent pod, AWE tuning DV & DV Reloc,ClutchMasters FX350.
BigRobSA is offline   Reply With Quote
Old 10-26-2011, 07:31 PM   #20
twenzel
Autocross Champion
 
Drives: CSG Golf R
Join Date: Jan 2011
Location: AustinTX
Posts: 118
Problem resolved incase anyone is interested.

VW determined that Oil Separator Valve had gone bad and was creating a vacuum leak which resulted in incorrect air/fuel mixture ratios. Valve replaced and problem resolved.
twenzel is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


All times are GMT -5. The time now is 06:25 PM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.