Ok so I stuck on the new bov today and now I am seeing massive overboost. I am no longer leaking any boost at all. Spool is 100% quicker withough the old leaky factory bov on there. First run I saw over 22 psi according to the gauge....gauge never showed over 17 before with old leaky bov....Only thing I noticed when I got back is the wastegate tubing was slightly pinched from reinstalling the IC (had to change a clamp) but that has been re-adjusted. Have not logged it yet to see what is going on, but it is kinda scaring me! It felt GREAT, but I am worried about long term effects and would like to get boost back under control. Any thoughts?
Ok more background...cobb stage 2 (Dp/UP, high flow cat) tweaked for aem sri only...no other changes to cobbs map yet, stock turbo, aem sri, ssautochrome TMIC, stock pill, stock wastegate hoses and connectors, gfb 50/50. Reason for change, stock bpv was leaking. This was really apparent when I put on the new aem sri. I could hear it leaking boost up to 5-7 psi and leaking even more when I was at peak boost (17 before). So I switched to the GFB 50/50 which I got for half the price of a new stock one ($195 from Subaru). I just installed this and now I get over 22 psi before I back off it. Thoughts so far are to ride again and see if the pinched wastegate hose was causing it, do a reset, vishnu reset it and try again... My thought at this time is the computer is trying to shoot as much boost in there as fast as it can because it is still thinking that it is recirculating like before with the leaky bpv. Going to do reset and check again.
Reset ECU and still over boosting, but not as high. It goes to just at 21 and holds there for a few rpms then tapers down like the stock map and like cobb stage 2. Moving the hose may have done this too, not sure. Going to do some logs today on the way out of town and just try to stay out of the boost as best I can.
is the stage 2 map supposed to run a bar and plate intercooler? i doubt it... the pressure drop across the stock IC is 3+ psi if i remember correctly... the bar and plate intercoolers have a much lower pressure drop... i think that might be ur problem
Nope it is stock top mount, but even 3 psi puts it at 18.8, not 22 psi. 4th gear on highway went to over 22 and threw a code...posting logs in a sec.
Ok can't seem to get it to copy over from ST....I try to highlight it and right click and it won't bring up the normal menu to be able to copy and paste....any idea? Any good easy way to do a photo copy of the screen?
There's no way he'd hit 22psi from an IC change, is my opinion. Something's f'd up with his boost control, causing insufficient pressure to reach the wastegate actuator. Crash: did you move the hose with the pill in it at all? Is there any chance you reversed the hoses when you moved them around, so that the pill is in the hose on the actuator side rather than compressor side?
the hose might have conme off all the way causing no pressure to ge tot he WSG 22 on stock turbo is like.. Uh...
nope, did not dissconnect any of them, just pushed it over so it was not crimped...if I can't find a way to screen print it or copy it somehow, I will just have to enter it in manually.
press the print screen button on ur keyboard open up mspaint press crtl +v save it as a JPG. and post it up
OK, I still think the problem is in: Hose from compressor side being messed up. Hose to actuator being messed up. Leak/tear in hose to boost controller solenoid. Boost controller solenoid not working. But please post your wastegate targets, as well as logged wastegate duty cycle and turbo dynamics if you have the ability to log that.
Throttle position RPM Relative Pressure 72 2585 5.66 60 2929 10.88 60 2978 12.18 61 3056 13.92 64 3135 15.81 85 3390 21.61
For some reason I did not have wastegates set to log....will have to go get a new one in a few, will try paint and screen prine.
Ok, will also be able to pull wideband info on there...got the LC-1 (in theory) set up to work with ST now and display correctly.
Please post a screenshot of your wastegate targets as well as turbo dynamics tables from StreetTuner if you can.
It is pretty sick till I got the p0244 code and fuel cut, lol. Even part throttle with the current is just sick, 22 psi with 10.5 afr is really smooth. There really is no drop off....and all this from a stock turbo. I know that they found that the td04 on our cars is a bit better than expected, but still kinda woke me up and took me by surprise the first time. The main thing is I was having to shift gears so quick and really getting up to speed in incredible time!!
No, you'd see WG boost (7-8 psi) only if you didn't bleed off ANY air. A leak would keep pressure from reaching the actuator and it'd just boost until something gives.
guess I can make a call to subaru tomorrow and try to get a replacement that is the exact same and just be easy till then. On a side note my stinking AP is not being recognized now by the map software....it sees it, but it says the serial is not right or something. when it rains it pours!!
the wastegate is like a boost brake the more it opens the less boost you will get. if no air is goin into the wg actuator then no brake then max boost then BOOM. if you notice the line to the WG is T ed (after the poison pill) one branch goes to the solenoid the other goes to wg actuator. Best picture ive seen is on the COBB tuning document look at the configuration and check your setup
Yup I am familiar, one side goes to the turbo outlet and the other goes to the wastegate...I am going to try to replace both of those and the pill just in case today.
Found the problem!!! I guess the way the TMIC was sitting it was pushing down on the wastegate actuator where the hose connects and BROKE the nipple that the hose goes on. Subaru wants me to buy a whole new turbo just to get that part at a price of $700...At this point I am going to try contacting some of the shops around here and see what I can find. Edit: SS is going to see what he can dig up, but he says that I might have some serious issues with the turbo in the near future as all this time it has been reving to max, but it was just covered up by the leaky bpv...guess the time for a new turbo is closer at hand than I thought!
D'oh! See if you can find the actuator alone from somebody like deadbolt, I bet they have them or can tell you where to find them. It wasn't the nipple on the compressor side that broke, was it? That could get ugly (Told ya it was a hardware issue...) edit: if you can't find one cheap, here's one... http://ipdusa.com/productscat.aspx?CategoryID=1822&NodeID=5722&RootID=1414
Edit above after talking to SS. He is going to see what he can do. It is the nipple on the actuator itself. I need to raise up the TMIC about 1/4 of an inch to make sure it clears.
Yup, this may just accelerate my plans for a new turbo...I would hate to throw away $200 for an actuator when that money could go towards a whole new turbo! I mean worst case I can pick up a big 16g from TDDC for $600. Best case I can order a nice shiney new deadbolt budged TD05-18g for $899 or a FPtd05-18g for $875. In the mean time if SS can get me one reasonably, I will go with that for now...new turbo not in this months budget.
Well have to go to work in a while...this may sound pretty ghetto, but I am going to JB weld it for now...put a little duck tape on 'er and she ran just fine!! (j/k) no duct tape at this point, but I am gonna try to jb it.
The infinna boost is now gone:hs: A little Jb weld did the trick. I also stuck a couple washers to space up the TMIC so that the problem would not repeat itself. I am really going to have to get a slightly longer TB-IC hose. Something in a nice silicon I think. The samco hose while nice is just a weee bit short now. Another inch of silicon should work fine, maybe even 3/4 inch longer. SS I appreciate you looking for me, not sure if you found anything, but I got it for now. It is a band aid fix, but it works...regular normal boost now, but it still feels better now that it is not being recirculated...much faster spool. Edit: I just have to add what a cool guy SS is. He seems to always have time (even though he is proly busy as hell) to answer stupid questions, help out and talk about stuff. If any of you new guys out there have not met him, take some time and swing by there with a burrito for him. Very cool guy.
One side note..now tha the wastegate is again doing its thing my spool is much slower according to my logs....the cobb ots stage 2 93 may do this on purpose, not sure, but again taking till 3200 to hit 16 where before when the turbo was free wheeling it was hitting 23 psi by 3200. This tells me it can spool much faster than what it is currently doing.