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Old 04-07-2013, 05:53 AM   #1
bugeyesubie117
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Default only making 7psi??

I just bought an 03 wrx and it came with a stock boost gauge. It shows the turbo only making about 7psi, just under the .5 on the gauge. What can I do to be sure I run at full boost? What could be making it run like this? it has 117xxx miles.
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Old 04-07-2013, 07:42 AM   #2
HonduHunter
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That's waste gate pressure. You've got a boost control issue.

I believe there should be a pill inside one of the vacuum lines near the turbo. Check and make sure that's there.

Maybe someone else can confirm.
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Old 04-07-2013, 03:41 PM   #3
bugeyesubie117
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Quote:
Originally Posted by HonduHunter View Post
That's waste gate pressure. You've got a boost control issue.

I believe there should be a pill inside one of the vacuum lines near the turbo. Check and make sure that's there.

Maybe someone else can confirm.
It looks like the pill is in the vacuum line. I can post a pic a bit later
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Old 04-07-2013, 04:43 PM   #4
sevier2
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Are you doing your WOT pulls in 3rd/4th gear? A lot of times the lower gears won't spool to full boost. If you ARE in fact doing pulls in 3rd/4th then yeah you've probably got a boost issue. Possible leak
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Old 04-07-2013, 05:07 PM   #5
HinshawWRX
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Boost issue. Running wastegate pressure.

The stock gauge reads in Mpa as a reference.

Check for leaks.
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Old 04-07-2013, 09:13 PM   #6
bugeyesubie117
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I dont hear any vacuum leaks
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Old 04-07-2013, 09:18 PM   #7
XLR8T
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if your IAM is under... 6 i believe?

The ECU discontinues all boost control. period.

Just something to keep in mind.... lol
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Old 04-07-2013, 10:40 PM   #8
bugeyesubie117
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Ok so the car was in limp mode, i disconnected and reconnected the battery and now its running on full boost. Will the car go back into limp mode and if it will how do i prevent it?
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Old 04-08-2013, 06:36 AM   #9
HinshawWRX
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Did you ever check for CEL's?
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Old 04-08-2013, 01:55 PM   #10
bugeyesubie117
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Quote:
Originally Posted by HinshawWRX View Post
Did you ever check for CEL's?
I have a code reader, ill check today when im free
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Old 04-08-2013, 02:58 PM   #11
shano
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check all vaccum lines around near the turbo. So many of those darn things.
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Old 04-08-2013, 05:33 PM   #12
bugeyesubie117
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Quote:
Originally Posted by shano View Post
check all vaccum lines around near the turbo. So many of those darn things.
All the lines are good and not leaking
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Old 04-08-2013, 10:06 PM   #13
bugeyesubie117
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everything looks connected

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Old 04-09-2013, 06:46 AM   #14
HinshawWRX
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FYI you won't really hear a leak if there is one. Try replacing the hoses and see what that does. Most of the time the crack is beyond tiny enough to see.
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Old 04-09-2013, 10:47 AM   #15
art@grimmspeed
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Check this article out. It may help you fix the problem
http://www.cobbtuning.com/Technical-...es-s/70674.htm
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Old 04-09-2013, 01:04 PM   #16
bugeyesubie117
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Quote:
Originally Posted by chris@grimmspeed View Post
Check this article out. It may help you fix the problem
http://www.cobbtuning.com/Technical-...es-s/70674.htm
Thank you!!
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