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09-25-2009, 12:08 AM | #226 |
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I just finished my 07wrx swap into my00rs and removed the air pump. I left everything else on and just plugged up the hose with a plug. After logging, for some reason my atmospheric pressure is reading 21.67psi. I thought the only way for the pressure sensor to read bad was to unplug it? In my case its still connected, the only thing removed was the pump. Anyone have an idea of what may have cause the sensor to read high? Will removing everything allow the sensor to read correctly again? I am in desperate need of help. Anything would be great. Thanks
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09-25-2009, 01:53 PM | #227 | |
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Vehicle:07 Extee |
Your sensor needs to be open to atmospheric pressure to read atmospheric pressure. I'm betting that when you shoved the plug in the hole (giggity), you compressed the air a bit. Either drill a small hole in the cap or remove it and have the opening point down some how so water doesn't get trapped.
Quote:
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09-25-2009, 01:59 PM | #228 |
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I just ordered the plate last week and have been debating how to deal with the pressure sensor. From what I can tell, the actual atmospheric pressure sensor is on the inlet side inside the valve itself. I'm guessing they moved it there to prevent any water damage. Please correct me if I'm wrong.
I think if you're going to make a block off plate, there needs to be an opening to read the atm pressure. |
09-25-2009, 05:49 PM | #229 | |
Former Vendor
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Join Date: Mar 2007
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Quote:
But the new valve block-off plate would go on the output side, so it normally sees exhaust pressure. I doubt the sensor is reading from there. This notorious pressure sensor is built into the driver-side valve, right? #8 in the pic attached below? |
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09-25-2009, 10:22 PM | #230 | |
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Quote:
Last edited by cthor; 09-25-2009 at 10:37 PM. |
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09-26-2009, 02:10 AM | #231 |
Scooby Specialist
Member#: 124236
Join Date: Aug 2006
Chapter/Region:
SWIC
Location: Albuquerque
Vehicle:2006 WRX Built EJ257 Version 8 Twinscroll |
how do i remove both the solenoids attached to the valves? i'd like to get rid of both the big metal clunkers but i'm not sure what to do with the electronics ( the black solenoids the are plugged in)
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09-26-2009, 10:23 AM | #232 |
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OK I'm sorry I didn't read you first post clearly enough. The 21.76 PSI reading is an open circuit value. Make sure the wiring harness that is plugged into your valve is completely secure.
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09-26-2009, 10:24 AM | #233 | |
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Quote:
I believe it is #4. I'll double check on my car later. EDIT: It's number #8 - you were correct Last edited by fast06wrxtr; 09-26-2009 at 02:47 PM. Reason: not assuming |
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09-26-2009, 12:03 PM | #234 |
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Unplug the solenoids and then have your tuner turn the appropriate CEL's off. My system is completely gone, solenoids, valves, etc and I have not has an issue.
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09-26-2009, 01:11 PM | #235 |
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Yea its plugged in. Is there a way to check if its getting a complete electrical circuit? I read somewhere that this ground goes directly to a fuse of some kind that does not exist in pre-06 models and if you do the swap you may have to manually wire in the ground. Well my car is an 00rs swapped with this 07 motor and I have a feeling like the valve is not getting complete electrical circulation.
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09-26-2009, 04:02 PM | #236 |
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09-26-2009, 05:20 PM | #237 | |
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Quote:
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09-26-2009, 08:47 PM | #238 | |
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Quote:
If anyone knows where this diagram is, please post it here. I am almost to the point of just wiring the solenoid manually to the ecu.... |
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09-30-2009, 03:15 AM | #239 |
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Vehicle:2007 SuperWagon I don't spell well |
Ok, just to be clear, what exactly do you do on the driver's side valve on an 07+ wrx? I know it must remain plugged in, but what do you do with the plumbing?
Do you remove the pipe to the head? Do you block off the ports in the valve? |
09-30-2009, 10:22 AM | #240 | |
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Quote:
Remove the valve from the head and block off the hole in the head. Unplug the valve and delete the code. At least that's what I did. Can this not be done on the 2007+ motors? |
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09-30-2009, 11:09 AM | #241 | |
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Quote:
07 WRX's and STI's have a pressure sensor in one of the valves that needs to remain plugged in. |
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09-30-2009, 11:10 AM | #242 | |
Former Vendor
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Quote:
I am pretty sure the above is true for 2007 STI also. If not then somebody please correct me. The 2008 is different I think. See the next post. On the 2006 WRX everything, including the driver-side valve can be removed before blocking off the ports in the heads. Last edited by KSTech; 09-30-2009 at 12:03 PM. Reason: added note about 2008. |
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09-30-2009, 12:02 PM | #243 |
Former Vendor
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Join Date: Mar 2007
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I wish Subaru would make up their mind. The attached diagram below is for the 2008+ WRX/STI (and 2007+ LGT I think). It appears that the pressure sensor may be part of the pass.-side valve (#5). I base this assumption on how the connector looks. Can anybody confirm this?
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10-01-2009, 12:07 PM | #244 |
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10-01-2009, 12:24 PM | #245 |
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I sent him all of the electrical diagrams for the 06 WRX.
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10-02-2009, 05:31 PM | #246 |
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mmmm something doesn't smell right about this. On my '06 TR, it sure looks like I have the pressure sensor built into the valve. Was there potentially a mid MY change?
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10-03-2009, 09:47 PM | #247 |
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Did this yesterday on my AUDM MY07 WRX. Well actually just removed the pump + pump hoses, until I get some block-off plates, so only took me about 30mins.
No negative side-effects that I can notice. Had a friend diable the CELs prior to removal. Although on the AUDM ECU there were only about 7 CELs, not the dozen or so listed earlier in the thread. I'll pop up a list of which ones they were for interests sake when I get my laptop/ROM later. |
10-03-2009, 09:47 PM | #248 |
Scooby Specialist
Member#: 101188
Join Date: Nov 2005
Location: Melbourne, Australia
Vehicle:MY07 WRX Wagon Black |
Did this yesterday on my AUDM MY07 WRX. Well actually just removed the pump + pump hoses, until I get some block-off plates, so only took me about 30mins.
No negative side-effects that I can notice. Had a friend diable the CELs prior to removal. Although on the AUDM ECU there were only about 7 CELs, not the dozen or so listed earlier in the thread. I'll pop up a list of which ones they were for interests sake when I get my laptop/ROM later. |
10-04-2009, 12:35 AM | #249 |
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are any of the 06-07 wrx guys logging their atomospheric pressure after the removal? i noticed one person had NO symptoms but the had problems reading boost or something.
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10-05-2009, 12:07 AM | #250 | |
Former Vendor
Member#: 143570
Join Date: Mar 2007
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Quote:
Has anybody with a 2007+ removed both valves (and pump) and checked their atmospheric pressure reading? It should be constant - about 14.7psi at sea level and around 12.2 psi up at elevations around 5000' (like here). |
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