Hanslo Posted August 7, 2009 Share Posted August 7, 2009 Update on dealer reflash. It has been a few weeks now and i'm still glad I did it. The apparent increase in mpg I noticed was a fluke. Mpg hasn't changed. The stutter is still gone. It feels a little like the stutter turbulence was kinda smoothed out and spread out over the rpm range if you know what I mean as there is still some roughness. One new thing is that I seem to have a single hiccup upon clutch engagement especially in first gear starting from a standstill. Overall it's still a lot better than before. But - this is all a moot point now since I just installed a cobb AP Wednesday night. Flashed stage1/93. I'll start a thread in the tuning section with my initial thoughts on this shortly. Hanslo Link to comment Share on other sites More sharing options...
08GT Posted August 25, 2009 Share Posted August 25, 2009 So my 08 LGT 5EAT has 5500 miles no mods at all and a couple of times while passing I put the SI Drive in Sport Sharp and stepped on it to the floor as you would for passing, it downshifted fine, ran to redline and when it upshifted it dropped to 4000 rpm and then there was a noticable stutter I heard it, felt it and saw the tach reacting also. It did it for about 1 second then pulled to redline as it should. I can't seem to get it to do it when the SI Drive is in Intellgent or Sport mode, only when it is in Sport Sharp. It was almost like a miss fire. I've often felt it was surging while driving normally but figured it was just me. I'm going to have the dealer look at it during my next service but was wondering what some of you think. Link to comment Share on other sites More sharing options...
Burns20 Posted August 25, 2009 Share Posted August 25, 2009 My '05 GT used to do it between 4000 - 5000 RPM. It used to drive me freakin' batty! What's weird is ever since the 60k service (spark plug change) it rarely does it now (currently have 85k). Go figure?? Link to comment Share on other sites More sharing options...
Wannabe Posted September 15, 2009 Share Posted September 15, 2009 Has this studder, stutter, delay in acceleration been resolved? I was planning on buying a 2008 GT Spec.B with the SI Drive but won't if it has not been resolved. Thank you to any for your help cuz i don't want to drop $30K for an irritation. Link to comment Share on other sites More sharing options...
kenzo Posted September 16, 2009 Share Posted September 16, 2009 Has this studder, stutter, delay in acceleration been resolved? I was planning on buying a 2008 GT Spec.B with the SI Drive but won't if it has not been resolved. Thank you to any for your help cuz i don't want to drop $30K for an irritation. Resolved with a dealer reflash a year ago. Link to comment Share on other sites More sharing options...
corazy Posted September 16, 2009 Share Posted September 16, 2009 i have an 08 limited gt with 5800 miles and it has had the problem since it was new. i was hoping a ecu tune would fix the problem Link to comment Share on other sites More sharing options...
CapnJack Posted September 17, 2009 Share Posted September 17, 2009 From what I have read, the Spec Bs have a better success rate with the reflash. I had my 07LGT reflashed at the dealer several times with no luck. I added the accessport and flashed to stage 1, and still had the studder. I then decided to see if stage 2 with TBE and AVO TMIC would solve the problem. The studder remained and then I had an overboost problem. Finally, I took it and got it tuned and it is smooth as silk. Only took me about $3000 to fix the problem. Link to comment Share on other sites More sharing options...
Strizzy Posted September 17, 2009 Share Posted September 17, 2009 I fixed my issue with a stage 2 dyno tune. The only studder I get is when I hit the limiter. My bad luck build Link to comment Share on other sites More sharing options...
Grios2.5 Posted September 18, 2009 Share Posted September 18, 2009 Mine went away when I installed an SPT intake 2 days ago... same thing happened to me but its back Link to comment Share on other sites More sharing options...
italy12984 Posted October 6, 2009 Share Posted October 6, 2009 Has Anyone felt this stutter in stop and go traffic. I dirve my 2007 Legacy GT in NYC to and from jobsites and find myself in stop and go traffic a lot. My car has been in 3 times, all of which the technicians have recognized the stuttering but are yet to fix it. not to mention i've been banged up for over $1000 in "out of warranty" repairs serpentine belt, battery replacement, spark plugs which were $350 alone. I did want to note that my car's stuttering happens more when you press the gas and let off it around 1000-1200 RPM's. if you step on the gas again it stutters violently, and i have even stalled twice, once on the FDR. I'm also gotten the car to stall in reverse. I've noticed when the engine has additional load on it (A/C on, stopped looking up a hill, wheel turned all the way) the stuttering and potential to stall i smuch greater. ANYONE have this problem? Link to comment Share on other sites More sharing options...
max_bobby Posted October 6, 2009 Share Posted October 6, 2009 Hey Italy12984. I have had the same problem. Always in stop and go traffic, without question. I have not stalled yet, but it feels like it will. I have also had an issue with a surge as well, almost like a delay in the torque when I put my foot down. Link to comment Share on other sites More sharing options...
max_bobby Posted October 6, 2009 Share Posted October 6, 2009 My dealership in Canada Subaru Mississauga will not acknowledge that a problem exists. I’m heading down to Van Bortel Subaru to see if they can figure something out, that’s where I bought my leggy. Apparently in Canada this kind of stuff never happens. WTF. Does anyone have a dealership in the states that acknowledges the issue, that I can refer to. Link to comment Share on other sites More sharing options...
BostonSpecB Posted October 15, 2009 Share Posted October 15, 2009 Hey all... Just wanted to say that the problem definitely exists on the '09 SpecB and it definitely is much better after the re-flash. Like most of the other people here, the problem only occurred between 3k and 4k RPM under wide-open-throttle in S# mode. With mine the problem varied... Sometimes it was very obvious, other times not so much. I believe it was at its worst after shifting from 1st to 2nd with the tach needle landing around 2k RPM between gears and then continuing to accelerate through 3 - 4k RPM at WOT. At times the sudden loss of power was so severe that it would cause the car to pitch nose-down violently for a second and then nose-up again as the boost kicked in again. Frustrating and dangerous! I was fully prepared for war when I went back to the dealer because I'd read how some of you had dealers deny the problem existed. I even printed out the 2008 TSB that I found thanks to this forum (http://legacygt.com/forums/showthread.php?p=2229061#post2229061) and had that in the car! I had the service manager take a ride with me and as I was pulling out of the lot just merging into traffic, he said he already felt it (I barely felt it at all that time) and he said "swing it around... I know what the problem is." I then handed him the TSB and he said "Yup... that's the problem." Apparently they've done this flash to a few LGT/SpecB and STi so this was no issue for them. (They had no less then 3 used SpecB on their lot and like 5 STi if you're looking for one btw!) After the flash my SpecB is noticeably better. I agree with a couple of the other posts here that the problem is still detectable in a minor way... but I have not been able to get it to hiccup (pitch-dive, etc) again the way it used to. I think that the way it is now, if the car had performed like this right out of the box, I never would have noticed it as a problem. I agree that the car feels quicker now as well. No word on fuel economy... I never see more than 18mpg anyway though so I'm not the best judge. What can I say? Heavy foot. Link to comment Share on other sites More sharing options...
Mikef87 Posted October 15, 2009 Share Posted October 15, 2009 Hey BostonSpecB- I'm taking a 07 specB down from NH before the months' thru-could you give me the name of ur dealer just incase mine wont take care of it for me? sounds like you got some good guys over there-and you need to work on that throttle control!! 18mpg?? haha Link to comment Share on other sites More sharing options...
BostonSpecB Posted October 19, 2009 Share Posted October 19, 2009 Yeah, a lot of my driving is around city streets so mileage could definitely be better. The dealership is named Planet Subaru and I dealt with the service manager there. I'm currently drawing a blank on his name but I have his card at home and can update later with his info. In the meantime: http://planetsubaru.com/ 596 Washington Street, Hanover MA 02339 Good luck! Link to comment Share on other sites More sharing options...
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