Air Intake Questions - Page 3 - Subaru WRX Forum
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post #31 of 34 Old 03-29-2012, 06:42 PM
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i checked the fuel pump and it is around 37-39 psi, low for the vehicle. I thought the cobb wouldnt need a tune but apparently im wrong. But back to the fuel pump from what i found it should be between 41-46psi. I put the stock air box back on after work today and im gonna see from there if the light comes back on. I do plan on upgrading the fuel pump to the walboro 255 and also putting injectors in, but i want it to run correcly first lol
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post #32 of 34 Old 03-30-2012, 06:57 AM
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50psi max from my research on the stock pump. That may be the issue. Also could be the filter.

The OTS maps are "ok" but I personally wouldn't run it for a LONG time. Some have had no problems.

Paul
2002 WRX Sold
2007 WRX Sold
2007 STi totaled
2007 Foz XT sold
2007 MS3
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post #33 of 34 Old 03-30-2012, 06:58 AM
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Quote:
Originally Posted by spc2125 View Post
Just a quick question. What kind of intake can you install without needing a tune (just for sound)?
Without any engine management?

Paul
2002 WRX Sold
2007 WRX Sold
2007 STi totaled
2007 Foz XT sold
2007 MS3
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post #34 of 34 Old 03-31-2012, 01:19 PM
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I installed the stock air box and im trying it and so far the light has stayed off. And also have a walbro 255 hp FP on the way. Thanks for the support. O and I replaced the filter 2 weeks ago when I did the plugs.
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