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Old 01-14-2017, 08:50 PM   #1
Jazee
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Default 2004 Stage 2 WRX AFR Question

Hello, I've noticed recently that on my AP my AFR boosts up to about 22-23 and doesn't really go any lower than 14. I've read that the AFR is supposed to get richer while accelerating, not leaner. I believe I'm running the right map, I have a TBE, Cobb Short Ram, and the v3 AP. I'm concerned this is a problem and can any of you help me out? Thanks.
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Old 01-14-2017, 09:55 PM   #2
sharpimagingzzz
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Which map are you running? Have you performed any troubleshooting?
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Old 01-14-2017, 10:49 PM   #3
Jazee
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Quote:
Originally Posted by sharpimagingzzz View Post
Which map are you running? Have you performed any troubleshooting?
It's a stage 2 93 octane Normal wastegate map. I haven't performed any troubleshooting, there's no CEL's or anything.
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Old 01-14-2017, 10:57 PM   #4
TMalo
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Get a wideband and/or have the car dyno tuned.
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Old 01-14-2017, 10:58 PM   #5
Jazee
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Quote:
Originally Posted by TMalo View Post
Get a wideband and/or have the car dyno tuned.
I don't want to spend $600 on getting it protuned. Surely there's another way to tell if I'm using the wrong map or if there's a mechanical issue or something.
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Old 01-14-2017, 11:44 PM   #6
sharpimagingzzz
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What are your AF Learning and Correct, etc doing when you get the high AFR and when does the AFR issue occur? (idle, cruise, wot, etc..)
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Old 01-14-2017, 11:48 PM   #7
Jazee
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Quote:
Originally Posted by sharpimagingzzz View Post
What are your AF Learning and Correct, etc doing when you get the high AFR and when does the AFR issue occur? (idle, cruise, wot, etc..)
Is the AF Learning and Correct a gauge on the AP? I haven't used that one. The issue occurs when under decent acceleration/WOT. At idle and cruise the level stays around 14.7
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Old 09-16-2020, 11:53 PM   #8
evanNaculum
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im having similiar issues on my 02...did you find out what the issue was?
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Old 09-17-2020, 10:15 AM   #9
Markopolo400
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Pull a datalog and post it
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Old 09-17-2020, 07:58 PM   #10
subaru_gc8
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are you letting off and its going to that, your car wouldnt run on a 22 afr. you would sputter quite bad
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Old 09-18-2020, 12:12 AM   #11
evanNaculum
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are you letting off and its going to that, your car wouldnt run on a 22 afr. you would sputter quite bad
yes, 22 afr completely off the accelerator. Its mostly my injector duty cycle that is concerning me hitting 49-50 at 1/2 throttle
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Old 09-18-2020, 11:51 AM   #12
subaru_gc8
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Quote:
Originally Posted by evanNaculum View Post
yes, 22 afr completely off the accelerator. Its mostly my injector duty cycle that is concerning me hitting 49-50 at 1/2 throttle
thats fine, when in the higher rpms the fuel cut take efffect so you dont get the rev hang going
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