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Old 06-03-2009, 11:07 AM   #1 (permalink)
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Help with reading from ap

I just got the Cobb AP about 2 weeks ago and i think i am running lean, while driving normal at around 3000-4000 my afrs are sitting around 14, but when i let go of the gas to shift my afrs jump high in the 23 and 24, at WOT it sits at 11, but same thing when i shift, they jump to high 23 even 25 at times.
Im running stage 2_93_v130 with TBE, and Uppipe. Using sunoco 94 octane
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Old 06-03-2009, 02:32 PM   #2 (permalink)
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At idle your A/F should be right around if not right at 14.7. I will try and remember to log my car on the way home from work and see what I come up with on mine.


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Old 06-04-2009, 12:03 AM   #3 (permalink)
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Yeah, at idle it sits at 14.7, even seems fine when im cruising, im just wondering if yours jumps that high when you get off the gas also, and is that normal for wrx's.
Thanks for all the help.
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Old 06-04-2009, 09:44 PM   #4 (permalink)
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Ok. Yeah its no problem. I havent had a chance to log yet, traffic sucks leaving base after work. I will try to get it done this weekend and post or PM you with the info/log.


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Old 06-04-2009, 10:28 PM   #5 (permalink)
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Thanks again, i appreciate it
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Old 06-05-2009, 07:36 PM   #6 (permalink)
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Hey I tried to log my car, but I couldnt get the logs out of the AP onto the computer. But I did pay attention to my A/F ratio on the drive home. At WOT I hit 11.1 in 2nd-4th and in between shifts I was as high as 20.4 So it seems like you are kind of in the range, except in between shifts. Is your DP catless?


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Old 06-05-2009, 11:13 PM   #7 (permalink)
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Yes, im completely catless, just got a resonator. You think that would make it run a little leaner, and should i worry, considering its not that high? I know the 3rd cylinder likes to lean out enough as it is.
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Old 06-05-2009, 11:27 PM   #8 (permalink)
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When you lift off the gas to shift your throttle plate closes so you have a very temporary lean condition but it is totally normal. You should be around 11 at WOT and 20 when you lift to shift.


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