rlefevre

Yes 2009 5EAT.

Yes it fit right up with no issues.

I installed a cobb dp today and stage 2 map to see if it would further improve my stutter situation. I had it almost completely eliminated with the stock setup, but I had already purchased the downpipe so I went ahead and installed it. I have not driven a whole lot yet but so far I have had no stutters. I have also been modifying the load compensation tables based on that excel spreadsheet floating around here somewhere where you datalog and then it makes recommendations to change the values in the table. This seems to have worked better for me than zeroing the table. I know the fuel line mod has not worked for everyone, but for me, doing that and modifying the LC tables has made it a whole new car.

You have more experience with these cars than me so I will yield to your experience, but are you sure a standing wave cannot be carried by fuel injector line? At least on my 09 lgt the line in question is fairly short and between two hard lines, so I have a hard time believing that short hose provides any significant dampening. Regardless of the reasoning, my car has almost completely stopped stuttering. Maybe it is just placebo, but my car fell for it.

FWIW, my car is automatic and the car did the stutter on stock map as well as cobb stage 1. No other mods.

It may or may not work for you, but it's a fairly cheap thing to try. For me the stutter occurred at multiples of 700 (1400, 2100, 2800) with the worst being probably the 2100.

I seem to have solved the problem for the most part on my legacy. I was having the problem where it would stutter at certain RPMs when cruising or going up small hills. I found this thread http://legacygt.com/forums/showthread.php/stutter-studder-hesitation-etc-198070.html?t=198070 Basically the theory is that a resonance builds up at certain RPMs in the fuel injector line which causes one of the injectors to get starved of fuel and then that cylinder runs extremely lean. I followed the modification suggested in the thread above and replaced one fuel line with a longer line. It seems to have worked well for me. I can still get the car to stutter, but it is much less common now. I have driven about 100 miles since replacing the tubing, and have only had it stutter maybe 3 times. Before the replacement, my car would stutter more than 5 times every time I drove. As a side note, there are some compensation tables that subaru tried to use to "fix" this issue which you are supposed to zero out when you do this mod. I have not got a chance to do this yet, so hopefully my stutter will further improve when I do that. It may not be the fix for everyone, but it cost me about $20 in fuel line and clamps, so it is worth a shot.

Recently purchased 2009 LGT 5EAT and I love it except for this stutter issue. For me it occurs when cruising around 2k rpm and slightly increasing throttle. It feels like the engine is bogging down like the transmission needs to down shift but doesn't. It will keep on stuttering as long as you keep the throttle constant, but if you apply a little more throttle it will downshift and the stutter will go away. I read through this entire thread and cannot figure out what is going on. I have no mods, but purchased a Cobb AP and tried OTS stage 1 map to try and fix the stutter. It did not fix it. I inspected the MAF and IAT and both are clean and shiny. Not sure what else to do and any advice would be appreciated. TYPE OF STUTTER/STUMBLE Steady throttle/Increasing throttle/Both: Steady or slightly increasing throttle. MODS None Intake: Exhaust: Fuel: Turbo: Engine Management: Cobb AP Tuner and revision of tune(if you don't mind): MAINTENANCE Sensors changed: Plugs changed: Coil Packs changed: OTHER SYMPTOMS Check Engine Light: No CEL's Etc: RESULTS What has and hasn't worked for you: Nothing has worked so far. If something worked, how long has it been working for: