|
|
|
|
Thread Tools | Display Modes |
06-29-2007, 01:05 PM | #1 |
Scooby Newbie
Member#: 123873
Join Date: Aug 2006
Chapter/Region:
BAIC
Location: Sonoma State University
Vehicle:02 WRX Cobb Stage2 Silver |
Bucking in 2nd gear sometimes.. help!
I have an 02 wrx with the following:
*80k miles *Borla Hush catback *ERZ downpipe *ERZ uppipe *Cobb 91 oct Stg. 2 Reflash via Openecu/Tactrix cable *Stock turbo I flashed the ECU a few weeks ago and now I am noticing some bucking in 2nd gear at WOT from about 3k rpms and up. It doesn't happen all the time. I *sometimes* also get it in third gear, but rarely. My boost gauge may be slightly off, but I'm only able to boost about 13-14psi. In the beginning, I hit 15psi pretty often. Should I re-reflash it to give the ECU a fresh copy? Should I copy the map from the ecu and compare it's parameters with a fresh copy of the cobb map to see if anything somehow changed?
* Registered users of the site do not see these ads.
|
06-29-2007, 01:50 PM | #2 |
Scooby Guru
Member#: 118209
Join Date: Jun 2006
Chapter/Region:
MWSOC
Location: North Dakota
Vehicle:2015 WRX Limitec |
I don't think your ECU is the problem, i'm guessing you might have something mechanical. (the ECU is generally all or nothing, it doesn't develop problems over time)
|
06-29-2007, 02:35 PM | #3 |
Scooby Specialist
Member#: 82064
Join Date: Feb 2005
Chapter/Region:
Tri-State
Location: TurboTekTuning Philly/Albany
Vehicle:2011 sti & evo ix white |
i would start by cleaning your maf, also log and see where the bucking is happening
|
06-29-2007, 02:46 PM | #4 |
Scooby Specialist
Member#: 92388
Join Date: Jul 2005
Chapter/Region:
Tri-State
Location: Pennsylvania
Vehicle:04 WRX, 06 STI wrb x 2,900awhp combo |
|
06-30-2007, 04:24 AM | #5 |
Scooby Newbie
Member#: 123873
Join Date: Aug 2006
Chapter/Region:
BAIC
Location: Sonoma State University
Vehicle:02 WRX Cobb Stage2 Silver |
ok, i will give that a try and post updates asap. thanks for the replies!
yes, stock BPV, stock air intake w/k&n drop in |
06-30-2007, 08:49 AM | #6 |
Sammo Hung
Moderator Member#: 10613
Join Date: Sep 2001
Chapter/Region:
South East
Location: N Fla / S Ga
Vehicle:2002 USDM WRX WRB |
it sounds like fuel cut from overboost.
where did you tap for your boost gauge? |
06-30-2007, 11:24 AM | #7 |
Scooby Newbie
Member#: 107323
Join Date: Feb 2006
Chapter/Region:
Tri-State
Vehicle:2005 Impreza WRX 16g Crystal Gray Metallic |
Why would he be hitting boost cut shifting to second? Sounds more like either hes shifting too low with a dirty intake/maf or hes in need of a grounding kit. Are you on stock plugs?
|
06-30-2007, 12:09 PM | #8 |
Scooby Newbie
Member#: 123873
Join Date: Aug 2006
Chapter/Region:
BAIC
Location: Sonoma State University
Vehicle:02 WRX Cobb Stage2 Silver |
yes, I am running stock plugs.
I also get a pretty powerful static shock when I get out of the car and close the door/kiss my girlfriend. no joke! I know I need a grounding kit, but it didn't buck (noticably) when I just had TBE. Could the reflash and uppipe intensify the bucking due to more power? |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Bucking Problems when Full throttle in 2nd gear | wrxguy27 | Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) | 1 | 05-20-2009 09:10 PM |
Noise in decelerating in 2nd gear | luckdove | Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) | 17 | 12-07-2007 08:20 PM |
Grinding in 2nd gear, 4th gear, and reverse | Blizwinter | Transmission (AT/MT) & Driveline | 5 | 06-08-2004 04:12 PM |
80MPH in 2nd Gear in an Auto | Mk750 | Transmission (AT/MT) & Driveline | 5 | 02-17-2002 11:42 AM |
Serious bucking and heaving in 2nd gear... | Siper2 | Technical Forum Archive | 17 | 06-12-2000 09:26 AM |