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 11-25-2017, 07:32 PM   #1
nevekd128
FIA World Rally Car Champion
 
nevekd128's Avatar
 
Drives: sf muni
Join Date: Sep 2011
Location: SFSU
Posts: 607
Misfires 6k rpm f23t

My f23 gets sporadic misfires above 6k rpm. Itís not valve float as the misfires are very inconsistent. I managed to log the issue and the cobb tuner mentioned my fuel system appears to take a dump at 6k rpm, where should I start looking for issues?

I recently replaced my hpfp about 500 miles ago
New plugs gapped to .026
Fresh 93 gas
R8 coil packs
Recent carbon cleaning and new Intake manifold within 500 miles ago.
I checked and my valve springs arenít the ones considered weak based on the color bands
__________________
When my water pump dies for the 6th time, ill ride my street triple
nevekd128 is offline   Reply With Quote
Old 11-25-2017, 08:10 PM   #2
Gino
FIA World Rally Car Champion
 
Drives: 2012 CSG GTI
Join Date: Feb 2015
Location: Camarillo, CA
Posts: 607
Fuel filter changed recently? LPFP?
__________________
Stratified Ported&Polished APR K04 | Dual Nozzle SnowPerformance W/M | MFactory LSD | IntegratedEngineering CAI | BillyBoat TBE | Neuspeed Discharge/Charge/FMIC/IC Delete..FSB/RSB..RSe11 w/Michelin PSS | 034 Motor/Trans/Dogbone Intsert+Mount | ECS CatchCan/BoostTap | Koni Coilovers (WestEnd Corner Balance) | Unibrace XB/UB | Whiteline F/R Endlinks | Brembo 17z/Hawk Street/StainlessLines | TyrolSport SLC | OEM LED Tails [Click4List]
Gino is offline   Reply With Quote
Old 11-25-2017, 08:31 PM   #3
FriggenT
Banned
 
Drives: 2013 Wolfsburg gti DSG
Join Date: Feb 2016
Location: Maryland
Posts: 2,571
Quote:
Originally Posted by nevekd128 View Post
My f23 gets sporadic misfires above 6k rpm. Itís not valve float as the misfires are very inconsistent. I managed to log the issue and the cobb tuner mentioned my fuel system appears to take a dump at 6k rpm, where should I start looking for issues?

I recently replaced my hpfp about 500 miles ago
New plugs gapped to .026
Fresh 93 gas
R8 coil packs
Recent carbon cleaning and new Intake manifold within 500 miles ago.
I checked and my valve springs arenít the ones considered weak based on the color bands
Which plugs?
FriggenT is offline   Reply With Quote
Old 11-26-2017, 01:54 PM   #4
Laimface
FIA World Rally Car Newbie
 
Laimface's Avatar
 
Drives: '09 Candy White GTi 6MT
Join Date: Oct 2016
Location: Isle of Man
Posts: 458
Quote:
Originally Posted by FriggenT View Post
Which plugs?
Butt plugs
__________________
No speed limits are the best speed limits
Laimface is offline   Reply With Quote
Old 11-26-2017, 02:04 PM   #5
FriggenT
Banned
 
Drives: 2013 Wolfsburg gti DSG
Join Date: Feb 2016
Location: Maryland
Posts: 2,571
Quote:
Originally Posted by Laimface View Post
Butt plugs
Friggen butt plugs?
FriggenT is offline   Reply With Quote
Old 11-27-2017, 12:39 AM   #6
nevekd128
FIA World Rally Car Champion
 
nevekd128's Avatar
 
Drives: sf muni
Join Date: Sep 2011
Location: SFSU
Posts: 607
Quote:
Originally Posted by FriggenT View Post
Friggen butt plugs?
bkr8eix .026 gap
and a set of bkr7eix with .024 gap same result
__________________
When my water pump dies for the 6th time, ill ride my street triple
nevekd128 is offline   Reply With Quote
Old 11-27-2017, 12:43 AM   #7
brobst
Formula 5000 Champion
 
brobst's Avatar
 
Drives: CSG mk6 6MT
Join Date: Jan 2014
Location: Michigan
Posts: 2,090
8 heat range try 0.024 gap

Sent from my SM-G900V using Tapatalk
__________________
K04 P&P | 325whp/325wtq | Beyond Superior Interior | Brobst's Build | Data logs
Quote:
Originally Posted by iGTI View Post
Superior interior is like 500hp at the wheels doe
brobst is offline   Reply With Quote
Old 11-27-2017, 08:49 AM   #8
FriggenT
Banned
 
Drives: 2013 Wolfsburg gti DSG
Join Date: Feb 2016
Location: Maryland
Posts: 2,571
Quote:
Originally Posted by nevekd128 View Post
bkr8eix .026 gap
and a set of bkr7eix with .024 gap same result
The PFR8S8EG were the only ones i used for that turbo
FriggenT is offline   Reply With Quote
Old 11-27-2017, 08:52 AM   #9
FriggenT
Banned
 
Drives: 2013 Wolfsburg gti DSG
Join Date: Feb 2016
Location: Maryland
Posts: 2,571
Quote:
Originally Posted by brobst View Post
8 heat range try 0.024 gap

Sent from my SM-G900V using Tapatalk
Yeah, might have to drop that gap... I did .026, but for some cars that doesn't work.
FriggenT is offline   Reply With Quote
Old 11-27-2017, 07:34 PM   #10
nevekd128
FIA World Rally Car Champion
 
nevekd128's Avatar
 
Drives: sf muni
Join Date: Sep 2011
Location: SFSU
Posts: 607
I'm at .024 now with the same result and will change the fuel filter tonight
__________________
When my water pump dies for the 6th time, ill ride my street triple
nevekd128 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 -4. The time now is 04:09 AM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.