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Old 04-24-2013, 06:06 PM   #1
crschneiderwrx
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Default 2011 wrx boost issues

Current tune: ap stage 2+ sf oct91

I started losing power throughout the week. I plugged up my ap and read boost off of it. Target boost:17.5 logging boost:14.4 I thought maybe my plastic ic had a crack, replaced with a fms tmic... Still same readings, then replaced the plastic bpv with a forgemotorsport bpv... Still same boost... I use to boost to my target but idk where I could be leaking?
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Old 04-24-2013, 08:06 PM   #2
sc00ter
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Now that you've replaced the TMIC you should probably get a tune.

In the meantime, did you try unplugging the battery to reset the ECU?
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Old 04-24-2013, 08:24 PM   #3
subyhatch05
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i would have checked all the lines and parts for leaks before going and buying expensive new parts out on a limb
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Old 04-24-2013, 09:18 PM   #4
crschneiderwrx
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well i was wanting to replace these parts anyways since ive been stage 2 for a year. The leak just happened a week before the purchase and wanted to clarify that the leak didn't come from the plastic parts
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Old 04-24-2013, 09:20 PM   #5
crschneiderwrx
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Quote:
Originally Posted by sc00ter View Post
Now that you've replaced the TMIC you should probably get a tune.

In the meantime, did you try unplugging the battery to reset the ECU?
I flash my tune back on, I didn't think i had to reconnect my battery every time i reflash my ecu with the current tune, or even just reflashing with same tune. Im saving for a protune next, I just want to figure out why my boost levels are not up to par before I do so.
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Old 04-24-2013, 11:00 PM   #6
jpatt006
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Quote:
Originally Posted by sc00ter View Post
Now that you've replaced the TMIC you should probably get a tune.

In the meantime, did you try unplugging the battery to reset the ECU?
A tune would be beneficial but isnt required for a TMIC

Quote:
Originally Posted by crschneiderwrx View Post
I flash my tune back on, I didn't think i had to reconnect my battery every time i reflash my ecu with the current tune, or even just reflashing with same tune. Im saving for a protune next, I just want to figure out why my boost levels are not up to par before I do so.
Take a look at your TB to IC hose if you havent already. Check if any vacuum lines are disconnected.
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Old 04-25-2013, 12:31 AM   #7
crschneiderwrx
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Tb to ic is tight, turbo to ic is checked, bpv gasket is fine, new forged bpv and ic.. Vaccum Line from bpv to Mani ? I believe? Is connected. I don't know of any other vacuum lines to look for
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Old 04-25-2013, 09:31 AM   #8
Mr Wrex
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Do you hear any noises when going WOT, such as a squeal or flutter? I find it weird that your car was hitting target boost for that long then one day dropped.
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Old 04-25-2013, 01:04 PM   #9
crschneiderwrx
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No added noise, I'm just lost and confused.... I figure if I posted up here maybe there's a random vacuum hose I don't know about?
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Old 04-25-2013, 03:19 PM   #10
nky2012wrxjason
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Where are you from here in Cincy tempature change really affects my boost winter ill hit 20 21 psi summer like 18 19
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Old 04-25-2013, 04:03 PM   #11
nmlittlebigman
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Quote:
Originally Posted by crschneiderwrx View Post
Tb to ic is tight, turbo to ic is checked, bpv gasket is fine, new forged bpv and ic.. Vaccum Line from bpv to Mani ? I believe? Is connected. I don't know of any other vacuum lines to look for
Build and use one of these: http://forums.nasioc.com/forums/show....php?t=2205161
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