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meth and afr questions

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Old Jun 25, 2008 | 07:33 PM
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Default meth and afr questions

so i made it back from afghanistan and i've been doing some tuning. when i go wot my afr drops like it is suppose to but then it lean up and then fattens up again and stays that way. here are some logs. the first one was alittle leaner than the rest. i fatened up the last two logs because i didn't want it to go too lean. so is this because of the meth injection setup or something else? the meth setup is from a sts kit. i got it from a friend.

(if need be, mods feel free to move this to the tuning section. wasn't sure where to put it)






oh and my 4" exhaust is on its way

Last edited by 4.8T; Jun 25, 2008 at 07:38 PM.
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Old Jun 25, 2008 | 11:11 PM
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No logs attached.

Is the meth progressive or just on/off with a boost reference switch?
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Old Jun 25, 2008 | 11:27 PM
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Dont have an answer, but i run ww fluid, untuned. It gives me about 1 more pound of boost, and it makes it a hair richer.
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Old Jun 26, 2008 | 08:31 AM
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oops, forgot the logs. the controler is suppose to be progressive. it hooks into one of my inectors and adds by injector duty cycle. its of course hooked into boost too. not sure how it works exactly because sts has no good info on there website about it. just says its progressive.
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Last edited by 4.8T; Jun 26, 2008 at 04:26 PM.
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Old Jun 27, 2008 | 11:55 AM
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they all look just like this. maybe its the timing ramping up right there.? does it everytime.


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Old Jun 27, 2008 | 12:05 PM
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could you post up your tune?
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Old Jun 27, 2008 | 01:41 PM
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sure can. its a work in progress
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