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Old 03-09-2013, 03:52 PM   #1
gsmith304
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Member#: 302159
Join Date: Nov 2011
Chapter/Region: MAIC
Location: West Virginia
Vehicle:
2003 WRX
Sonic Yellow

Default Can't Reflash & only on 7psi

Heres the deal, I installed a silicone inlet, in the process having to replace my T fitting near the waste gate, and now I'm only on 7.4 psi and my AP won't let me re-flash but I can realtime flash. I was on STg1 93oct. and I tried to realtime HWG 93 oct map and nothing changes. Still only 7psi or so of boost. Before I replaced my T fitting with a OEM size/spec one(broke it putting on tmic) I put a replacement in for the time being and was over sized and I was hitting 17+ psi on a Stage1 tune, so I know theres no mechanical issues or boost leaks/blockages. Any insight?

03 WRX
Cobb short ram
v7 TMIC
3in cbe
Silicone inlet
WAS on Stg1 93 normal wg
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Old 03-09-2013, 11:33 PM   #2
jebjkey
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Member#: 73884
Join Date: Nov 2004
Chapter/Region: International
Location: Naples, ITALY
Vehicle:
2005 STi
2006 Evolution MR

Default

Check your boost control hose connections. You are makeing WG spring pressure so something is probably not connected correctly. Cobb has a good .pdf on their website about the subaru boost control system, check it out for reference.
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Old 03-11-2013, 10:54 AM   #3
Cobb Tuning
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Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default

Quote:
Originally Posted by gsmith304 View Post
Heres the deal, I installed a silicone inlet, in the process having to replace my T fitting near the waste gate, and now I'm only on 7.4 psi and my AP won't let me re-flash but I can realtime flash. I was on STg1 93oct. and I tried to realtime HWG 93 oct map and nothing changes. Still only 7psi or so of boost. Before I replaced my T fitting with a OEM size/spec one(broke it putting on tmic) I put a replacement in for the time being and was over sized and I was hitting 17+ psi on a Stage1 tune, so I know theres no mechanical issues or boost leaks/blockages. Any insight?

03 WRX
Cobb short ram
v7 TMIC
3in cbe
Silicone inlet
WAS on Stg1 93 normal wg
It sounds like you are using the wrong t-fitting. I would go to the Subaru dealer and get the whole hose assembly and replace it. Our off-the-shelf (OTS) maps are only designed to work with the factory boost control hardware. Check out our boost hardware guide here:
http://www.cobbtuning.com/Technical-...es-s/70674.htm

As far as reflashing maps, your vehicle requires that you connect the green test mode connectors under the dash as well as the initialization block when you wish to reflash a map. This is the same procedure that you did when you installed the Accessport.

If you have a version 2 Accessport, get a WOT data log as described in the video below (if you can do so safely). That way, we can check to see if the ECU is the cause of the low boost (ex. due to excessive knock - boost control is disabled) or if this is a mechanical issue (likely a mechanical issue given the circumstances).


Bill
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Old 03-13-2013, 06:38 PM   #4
gsmith304
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Member#: 302159
Join Date: Nov 2011
Chapter/Region: MAIC
Location: West Virginia
Vehicle:
2003 WRX
Sonic Yellow

Default

Quote:
Originally Posted by Cobb Tuning View Post
It sounds like you are using the wrong t-fitting. I would go to the Subaru dealer and get the whole hose assembly and replace it. Our off-the-shelf (OTS) maps are only designed to work with the factory boost control hardware. Check out our boost hardware guide here:
http://www.cobbtuning.com/Technical-...es-s/70674.htm

As far as reflashing maps, your vehicle requires that you connect the green test mode connectors under the dash as well as the initialization block when you wish to reflash a map. This is the same procedure that you did when you installed the Accessport.

If you have a version 2 Accessport, get a WOT data log as described in the video below (if you can do so safely). That way, we can check to see if the ECU is the cause of the low boost (ex. due to excessive knock - boost control is disabled) or if this is a mechanical issue (likely a mechanical issue given the circumstances).

AskCOBB - Subaru Data Logging - YouTube

Bill
I do have the green test mode and white connector, connected when I try to reflash. My ap says to cycle the key to OFF then to ON and hit OK immediately and then it says no comm with ecu
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Old 03-13-2013, 07:42 PM   #5
gsmith304
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Member#: 302159
Join Date: Nov 2011
Chapter/Region: MAIC
Location: West Virginia
Vehicle:
2003 WRX
Sonic Yellow

Default

my mistake, i figured out why i wasnt getting full boost, gonna fix tomorrow and see if i can still reflash though
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Old 03-14-2013, 09:17 AM   #6
Cobb Tuning
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Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default

Quote:
Originally Posted by gsmith304 View Post
I do have the green test mode and white connector, connected when I try to reflash. My ap says to cycle the key to OFF then to ON and hit OK immediately and then it says no comm with ecu
For these ECUs, the timing can be a little tricky. When you key cycle the ignition, try to hit OK as fast as possible once the ignition key is at ON (but not before). If you still have problems, disconnect the cable from the car and then simply turn the ignition ON. The check engine light should flash and the radiator fans will start cycling after a period of time. If that does not happen, then the test mode connectors are not connected or there's a wiring issue with them possibly.

Bill
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Old 03-14-2013, 12:24 PM   #7
jebjkey
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Join Date: Nov 2004
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Location: Naples, ITALY
Vehicle:
2005 STi
2006 Evolution MR

Default

Quote:
Originally Posted by gsmith304 View Post
my mistake, i figured out why i wasnt getting full boost, gonna fix tomorrow and see if i can still reflash though
So what was it?
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Old 03-15-2013, 07:38 AM   #8
gsmith304
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Member#: 302159
Join Date: Nov 2011
Chapter/Region: MAIC
Location: West Virginia
Vehicle:
2003 WRX
Sonic Yellow

Default

Quote:
Originally Posted by jebjkey View Post

So what was it?
When I went to replace my T fitting and hoses I didn't put the restrictor pill back in the hose that goes to the WG. I felt so dumb haha but haven't had time to try and reflash yet. Ill try that though @CobbTuning
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Old 03-15-2013, 09:09 AM   #9
endrswrd
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Join Date: Jun 2012
Chapter/Region: MWSOC
Location: Dayton Ohio
Vehicle:
2013 BRZ ltd
ISM

Default

Its a timing thing on the older ECUs. The same thing happens on ECUflash. You have to cycle key wait a split second then attempt flash. All rather quickly.
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Old 03-15-2013, 08:06 PM   #10
gsmith304
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Member#: 302159
Join Date: Nov 2011
Chapter/Region: MAIC
Location: West Virginia
Vehicle:
2003 WRX
Sonic Yellow

Default

All is good now. Got it to reflash on 1st try thanks everyone
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