car_guy1 Posted April 23, 2009 Posted April 23, 2009 So I tuned to stage 2 with the folling changes. I'm not the tuner so this is the best info i can give: -Boost moved from a peak of 13 to 17.5 -Boost Controller int DC% changed -Max wgdc limit moved to 95% -Boost cut set to 19.92 psi -Ign timing changed to account for extra boost -Fuel map changed -Cl to Ol tps transition changed. -FLKC load limit now 4 -RLKC load limit now 4 I have an invidia catless DP, STI UP, and a K&N panel filter. Before the tune it felt slower than stock, after the tune there was almost no change in the performance. The boost peaks at 11.26 psi. I thought the solenoid might be bad so I changed it out, no difference. I removed the lie going to the wastegate and it did hit over boost and cut the fuel triggering a CEL but still didnt feel any different. Any thoughts? I'm going to install new plugs tonight (1 step colder), and check the power to the harness for the solenoid, but after that, I'm baffled. The other thing I can think of is the ramifacation of not pluging back in the EGTS because the STI pipe has no bung for it and after we supressed the code thats messing it up. I don't know.
Legacy_GT_Pilot Posted April 23, 2009 Posted April 23, 2009 You need to capture a log of a third gear pull from 2k to redline so folks can see exactly what your car is doing. At the very least log throttle, rpm, boost, wastegate duty cycle, total timing, load and knock.
tommypenguin Posted April 23, 2009 Posted April 23, 2009 First off could you post a learning view. If your fuel learning in cell a is pegged at 15 you probably have a leak.
Spec B Posted April 23, 2009 Posted April 23, 2009 Is the only thing you changed the tune? As the others said, you need to rule out the mechanical stuff first. Perhaps you should start with MickeyD's stage 2 map found here: http://www.romraider.com/forum/topic4468.html Then work your way up from there.
qikslvr Posted April 28, 2009 Posted April 28, 2009 If it felt slower than stock BEFORE the tune then I would put money on it being a boost leak or a vacuum hose. Any number of vacuum lines could have popped off and caused this even on a stock tune. This will cause the wastegate actuator to operate on spring pressure only. The usual culprit is one of the hoses that go into the tee under the intercooler. Pull the intercooler and check for a little blue or gray tee right up close to the middle of the intake manifold. While you are in there, you may as well zip tie them all on since they are know to pop off now and then. Another thing to check is to make sure that all the band clamps in the intake tract are tight. The main ones to check will be on the throttle body hose as higher boost can blow by/out of the throttle body hose if it's not tight. Also make sure the intercooler is sealing up to the turbo and do the same for the BOV. I've had this happen from both things described above. Right after going stage2, I popped a vacuum line and then after putting on a Perrin TMIC; I had the TOB hose clamp walk off the hose and cause a leak right at the throttle body. In both cases I couldn't hit boost targets. Let's kick this pig!
car_guy1 Posted April 30, 2009 Author Posted April 30, 2009 I think I found the leak. I went nuts taking things apart over last weekend and found a quarter sized hole in my turbo inlet hose. I have a new one ordered. I'll install tomorrow. I have my fingers crossed.
SubieBlkOut Posted April 30, 2009 Posted April 30, 2009 you want to take a picture of the leak? How do you think it got there? I am fighting the same lean AFR problem.
qikslvr Posted May 1, 2009 Posted May 1, 2009 Good find. I had to replace my stock one last year. The turbo end of the inlet is pretty thin and the band clamp that holds it to the tubo chews it up pretty bad and the heat doesn't do it any favors either. Now for the fun part. Putting the new one on. Let's kick this pig!
mwiener2 Posted May 1, 2009 Posted May 1, 2009 You need to do the EGT resistor fix. It's restricting boost because the EGT isn't reading right My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons
cfdrumr Posted May 1, 2009 Posted May 1, 2009 EGT fix... I have a resistor on the UP sensor but no clue about the EGT...explain?
Spec B Posted May 1, 2009 Posted May 1, 2009 If you are not tripping the CEL, I doubt it is the EGT and I don't thik it would limit boost.
car_guy1 Posted May 1, 2009 Author Posted May 1, 2009 I just found out I won't get my part until monday now. When I do I'll take a picture. Yeah, I can't wait to change this hose, i've been reading the horror stories about it. it can't be worse than doing the uppipe right? I'm not laying on my back the whole time doing it. As for the EGT, I have not tried the resistor fix yet, I figured with the giant hole in my hose that would do the trick. I'll do it with the hose replacement and see. As for how it got there? I know the turbo has been off twice. Once by the dealer last year in Ann Arbor, (by the way, never ever go there. hacks, thieves an douche bags), and 1 time when I replaced my down pipe. I had to remove the turbo to fix the oil return off the turbo because it was leaking. Myself or the dealer may have torn it a bit while re-installing the turbo. The hole is very close to where it fits over the turbo pipe. who knows, Even it it was me I still blame the dealer. you want to take a picture of the leak? How do you think it got there? I am fighting the same lean AFR problem.
mwiener2 Posted May 1, 2009 Posted May 1, 2009 If you are not tripping the CEL, I doubt it is the EGT and I don't thik it would limit boost. he disabled the CEL My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons
qikslvr Posted May 1, 2009 Posted May 1, 2009 I just found out I won't get my part until monday now. When I do I'll take a picture. Yeah, I can't wait to change this hose, i've been reading the horror stories about it. it can't be worse than doing the uppipe right? I'm not laying on my back the whole time doing it. As for the EGT, I have not tried the resistor fix yet, I figured with the giant hole in my hose that would do the trick. I'll do it with the hose replacement and see. As for how it got there? I know the turbo has been off twice. Once by the dealer last year in Ann Arbor, (by the way, never ever go there. hacks, thieves an douche bags), and 1 time when I replaced my down pipe. I had to remove the turbo to fix the oil return off the turbo because it was leaking. Myself or the dealer may have torn it a bit while re-installing the turbo. The hole is very close to where it fits over the turbo pipe. who knows, Even it it was me I still blame the dealer. I have the CEL for the EGT probe disabled, but still have the EGT probe plugged in and zip-tied to a hose and it's never been the issue with lost boost or any other part of tuning for that matter. As for the turbo inlet hose; taking the turbo off a couple times will do it. Mine started right at the turbo end of the hose when I took the turbo off the first time a few years ago. I just slide the band clamp up the hose far enough to cover it and it lasted for about a year. After that I put a Perrin inlet hose on. IIRC their install instructions something like "... and at some point during the install you will think this is impossible...":lol:. The stock one shouldn't be as bad, but I bet it's not fun either. Keep us posted. Let's kick this pig!
mwiener2 Posted May 1, 2009 Posted May 1, 2009 you will run into CL/OL issues without that resistor fix My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons
mwiener2 Posted May 2, 2009 Posted May 2, 2009 2.2kohm resistor put in the EGT plug My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons
cfdrumr Posted May 2, 2009 Posted May 2, 2009 isnt this the UP EGT mod or are you referring to another EGT?
mwiener2 Posted May 2, 2009 Posted May 2, 2009 there is only one EGT My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons
cfdrumr Posted May 2, 2009 Posted May 2, 2009 well, i am already running a 2.2k on the EGT...hmm i think i might also have a tear on the inlet hose....
car_guy1 Posted May 11, 2009 Author Posted May 11, 2009 What a pain in the ass changing that hose was. I wanted to punch a subaru engineer about an hour into it. I finally got it changed out and my old hose was all tore up. I also did the 2.2 ohm resistor thing. It does run better, a lot better. but I still don't think I'm getting the extra boost I'm tuned for. I need a boost gauge to tell. I think I'm going to buy one of those cool things that replaces the trip computer as a boost gauge. http://sz0099.ev.mail.comcast.net/service/home/~/0509091219.jpg?auth=co&loc=en_US&id=29556&part=2http://sz0099.ev.mail.comcast.net/service/home/~/0509091219a.jpg?auth=co&loc=en_US&id=29555&part=2
cfdrumr Posted May 12, 2009 Posted May 12, 2009 i am still making only 11...this sucks Once my IC is done (end of the week) I think i am going to give in and get a protune
mwiener2 Posted May 12, 2009 Posted May 12, 2009 did your turbo eat the chunk of missing inlet hose? My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons
cfdrumr Posted May 13, 2009 Posted May 13, 2009 nope...there is just a slight tear...the turbo makes full boost when i pull the WG hose
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