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Old 08-23-2013, 10:14 AM   #1
cosseywrx
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Default 05wrx goes 16-17afr at wot

Problem solved! thanks
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Last edited by cosseywrx; 08-23-2013 at 09:10 PM.
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Old 08-23-2013, 11:26 AM   #2
wrxlaunch
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Did u flow test injectors before installing them?
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Old 08-23-2013, 12:03 PM   #3
Brother EddieJ.
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There is no way it's 16:1 at wot. What wide band are you using? Where is the O2 sensor for the wide band located?

With that kind of afr it wouldnt be a "knock" it would be a BOOM!!
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Old 08-23-2013, 12:16 PM   #4
art@grimmspeed
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I would suggest taking it to a reputable shop for a look over and a dyno tune. It is hard for anyone even an experienced tuner to diagnose problems like this over the computer or Logs.
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Old 08-23-2013, 02:10 PM   #5
cosseywrx
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Ive had the injectors installed for 2 yrs. Multiple tunes.

I also changed the maps to verify it was not the tune.

Aem wideband located at the end of the dp.

No flow test has been done since problem.

No dyno with 400 miles of me.

Live in alaska
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Old 08-23-2013, 02:13 PM   #6
cosseywrx
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And yes it was 16 afr at wot. I have logs to prove that.
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Old 08-23-2013, 03:40 PM   #7
cosseywrx
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Can the FPR be stuck and only work fine under vaccum? Gonna get a fuel press gauge.

No flow test benches in alaska for injector tests
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Old 08-23-2013, 03:45 PM   #8
fastnoypi
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Quote:
Originally Posted by Brother EddieJ. View Post
There is no way it's 16:1 at wot. What wide band are you using? Where is the O2 sensor for the wide band located?

With that kind of afr it wouldnt be a "knock" it would be a BOOM!!
^ this. that AEM's calibration is f'd up or just seeing too much surrounding air at the end of the pipe.
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Old 08-23-2013, 03:49 PM   #9
Brother EddieJ.
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My honest guess is the o2 sensor is borked. Buy a new one and go from there. I have the same gauge and this happened to me. Lets see the 16:1 afr logs to prove the wide band is correct. 16:1=BOOM
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Old 08-23-2013, 06:35 PM   #10
cosseywrx
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Car still has knock and sputtters. Aem gauge is not gonna cause that.

16.2 on a most recent log with aem. 17 on the new front o2 sensor. This a a cell screenshot. Can upload doc once i get home.

Dont be dicks just tell me what ya think.


Last edited by cosseywrx; 08-23-2013 at 06:55 PM.
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Old 08-23-2013, 06:56 PM   #11
cosseywrx
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Also im on a carberry rom
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Old 08-23-2013, 09:46 PM   #12
JonnyV2889
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For starters find a tuner? You need to add fuel or timing asap. I wouldn't keep going WOT with the 3 degrees pulled.
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Old 08-24-2013, 01:51 PM   #13
Paul
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so what was the issue??
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