03 WRX VF23 Xede only 1 BAR
Thread Starter
Nobody likes the tuna here
iTrader: (51)
Joined: Feb 2010
Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax
03 WRX VF23 Xede only 1 BAR
Was driving fine till I went to the dentist got out, hit it to merge onto 92 and went hmmm really slow, looked down to see I'm at stock boost levels.
Now the car does not drive funky in any way (idle is fine/no sputter/studder/knock/etc) it just does not reach target boost which is usually a tad over 1.2 bars 1.3 on cold nights. I just cleaned the MAF checked the air filter (did not seem to by dirty enough to restrict) and also did a battery disconnect. The vacuum hoses seem to be all intact, the wastegate was in the closed position when I checked all of this.
I can add to this with questions asked if need be. Wastegate pressure is 8-10psi so.... 1 bar is above that, stock boost controller is out of the question.
Now the car does not drive funky in any way (idle is fine/no sputter/studder/knock/etc) it just does not reach target boost which is usually a tad over 1.2 bars 1.3 on cold nights. I just cleaned the MAF checked the air filter (did not seem to by dirty enough to restrict) and also did a battery disconnect. The vacuum hoses seem to be all intact, the wastegate was in the closed position when I checked all of this.
I can add to this with questions asked if need be. Wastegate pressure is 8-10psi so.... 1 bar is above that, stock boost controller is out of the question.
Registered User
iTrader: (10)
Joined: Aug 2011
Posts: 1,758
From: San Jose, CA
Car Info: Galaxy Blue 2015 WRX
A buddy had the same problem from what it sounds like and ended up being a boost leak because a coupling on the FMIC was a bit loose. You may have checked because you are pretty knowledgable but check around for boost leaks, yank on hoses and you might find a loose one.
Thread Starter
Nobody likes the tuna here
iTrader: (51)
Joined: Feb 2010
Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax
Tried all hoses and followed them with a flashlight and tugged on them and there is no obvious hissing noises either which usually comes with a loose coupler.
Thread Starter
Nobody likes the tuna here
iTrader: (51)
Joined: Feb 2010
Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax
Registered User
iTrader: (12)
Joined: Apr 2008
Posts: 7,225
From: SF Bay Area - Peninsula
Car Info: 04 psm wrx sedan
Sounds like what happened to my car a while back...new solenoid and tune and its all fine and dandy
My boost levels fluctuated from 6psi low, average about 8-10 and sometimes up to 12psi
My boost levels fluctuated from 6psi low, average about 8-10 and sometimes up to 12psi
Thread Starter
Nobody likes the tuna here
iTrader: (51)
Joined: Feb 2010
Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax
Yeah I'm thinking either a sticky wastegate, or maybe the ECU was compensating for air flow on the MAF? I dunno...
Registered User
iTrader: (12)
Joined: Apr 2008
Posts: 7,225
From: SF Bay Area - Peninsula
Car Info: 04 psm wrx sedan
With a super custom setup like yours its hard to tell...hopefully it doesn't come back
I didn't have my car for almost three months because of that issue
I didn't have my car for almost three months because of that issue
Thread Starter
Nobody likes the tuna here
iTrader: (51)
Joined: Feb 2010
Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax
Yeah I dunno esp having xede I don't know much about it still, all I know if that it is a stock ecu with an attachment and its closer to ECUTEK than cobb is for sure. Maybe more like a Utec set up too.
Thread Starter
Nobody likes the tuna here
iTrader: (51)
Joined: Feb 2010
Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax
That's funny - VF23 + Xede = Vishnu, right? Same as my car, basically. Only, my Xede is on a shelf somewhere and Ed @ EQ took car of my tune on my car via open-source.
Thread Starter
Nobody likes the tuna here
iTrader: (51)
Joined: Feb 2010
Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax