only 11psi running stageII
#1
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Thread Starter
Join Date: Mar 2006
Location: Orlando, fl
Posts: 16
Car Info: 04 Forester XT
only 11psi running stageII
Vehicle: 04 FXT 4eat
Got stock boost gauge and only getting .07mpa or about 11psi in stageII. Did a live boost reading in the AP and verifies only 11psi tops.
And only .05mpa in StageI.
Mods: sti upipe/manifold, TXS stealthback.
Looked/listened for any boost or vacuum leaks.. seems ok. Like I said, before the mods I was only getting .05 for stageI and should be like 13psi.
No codes were listed in the AP. Any thoughts for troubleshooting?
I was looking at a TDC etune or "road" protune? Would that fix it??
Tried resetting the ECU through the AP so far too.
Got stock boost gauge and only getting .07mpa or about 11psi in stageII. Did a live boost reading in the AP and verifies only 11psi tops.
And only .05mpa in StageI.
Mods: sti upipe/manifold, TXS stealthback.
Looked/listened for any boost or vacuum leaks.. seems ok. Like I said, before the mods I was only getting .05 for stageI and should be like 13psi.
No codes were listed in the AP. Any thoughts for troubleshooting?
I was looking at a TDC etune or "road" protune? Would that fix it??
Tried resetting the ECU through the AP so far too.
#3
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Thread Starter
Join Date: Mar 2006
Location: Orlando, fl
Posts: 16
Car Info: 04 Forester XT
I think that the sti exhaust manifold and fxt manifold are close size wise, just supposed to flow a little better..
did not have it for stage 1.. only getting .05mpa for stage I
did not have it for stage 1.. only getting .05mpa for stage I
#6
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Join Date: May 2005
Location: Sunnyvale, CA
Posts: 22,776
Car Info: '13 BRZ Limited / '02 WRX
you have to give the ECU time to learn. Resetting the ECU will only make this take longer because it resets any learned information that allows the car to safely reach peak boost. Give the car about a week or so and see if youre hitting target boost then
#7
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Join Date: Dec 2003
Location: St. Louis MO
Posts: 1,245
Car Info: 02 PSM WRX
If you've given it enough time to learn and your still not hitting target boost Cobb has high wastegate maps that might help. I'm not familiar with the FXT's but if the wastegate arm is adjustable that might be something to look into also http://www.scoobymods.com/forums/showthread.php?t=3654 . Some say that this adjustment wont help with low boost but it seemed to do the trick on my 02 stage 2 WRX when I was having low boost problems.
Another thing to look into is the restrictor pill. If your turbo vac lines have been manipulated it may be missing or in backwards. I have no experience with restrictor pill problems and I'm not 100% positive it will cause low boost but I think I remember reading something about it and low boost.
Another thing to look into is the restrictor pill. If your turbo vac lines have been manipulated it may be missing or in backwards. I have no experience with restrictor pill problems and I'm not 100% positive it will cause low boost but I think I remember reading something about it and low boost.
#8
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Thread Starter
Join Date: Mar 2006
Location: Orlando, fl
Posts: 16
Car Info: 04 Forester XT
Help with data logs??
Can anyone with data log experience, give me some advice as to what is going on with my car?? Only getting 11psi, instead of 13.5psi per cobb's site.
04 forester XT (2.5 turbo)
mods: sti scoop/exhaust manifold/up pipe/cobb stageII/TXS stealhback
I have attached two .csv files from EcuExplorer in zip format
thanks, john
04 forester XT (2.5 turbo)
mods: sti scoop/exhaust manifold/up pipe/cobb stageII/TXS stealhback
I have attached two .csv files from EcuExplorer in zip format
thanks, john
#9
Do you have a downpipe? If not you need one for stgII. ( Not familiar with the TXS stealthback system) Also try running the high waste gate map.
*** Be sure to use the right AC adapter or you'll fry your AP. ***
*** Be sure to use the right AC adapter or you'll fry your AP. ***
#10
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Thread Starter
Join Date: Mar 2006
Location: Orlando, fl
Posts: 16
Car Info: 04 Forester XT
Originally Posted by willz23
Do you have a downpipe? If not you need one for stgII. ( Not familiar with the TXS stealthback system) Also try running the high waste gate map.
*** Be sure to use the right AC adapter or you'll fry your AP. ***
*** Be sure to use the right AC adapter or you'll fry your AP. ***
#11
Registered User
Thread Starter
Join Date: Mar 2006
Location: Orlando, fl
Posts: 16
Car Info: 04 Forester XT
Update
Originally Posted by MO REX
If you've given it enough time to learn and your still not hitting target boost Cobb has high wastegate maps that might help. I'm not familiar with the FXT's but if the wastegate arm is adjustable that might be something to look into also http://www.scoobymods.com/forums/showthread.php?t=3654 . Some say that this adjustment wont help with low boost but it seemed to do the trick on my 02 stage 2 WRX when I was having low boost problems.
Another thing to look into is the restrictor pill. If your turbo vac lines have been manipulated it may be missing or in backwards. I have no experience with restrictor pill problems and I'm not 100% positive it will cause low boost but I think I remember reading something about it and low boost.
Another thing to look into is the restrictor pill. If your turbo vac lines have been manipulated it may be missing or in backwards. I have no experience with restrictor pill problems and I'm not 100% positive it will cause low boost but I think I remember reading something about it and low boost.
- Checked & Re-checked IC piping, Y-pipe and to TB (no visible cracks)
- Verified Restrictor pill installed
- Uninstalled and Re-installed AP
- Flashed base Map to ver. 111
- Checked Up-pipe to manifold connection
- gave wastegate arm end two turns -- (helped a little)
- Generally looked/listened for any vacuum leaks
Car runs well, but just doesn't get anywhere near target boost (15psi) per Chris at Cobb
#13
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Join Date: Dec 2003
Location: St. Louis MO
Posts: 1,245
Car Info: 02 PSM WRX
Originally Posted by midnight302
Checked & Re-checked IC piping, Y-pipe and to TB (no visible cracks)
Originally Posted by midnight302
gave wastegate arm end two turns -- (helped a little)
Do you know any people in your area with a FXT that might be willing to swap FBC's for a test run?
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