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Old Apr 30, 2006 | 04:20 PM
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Default MAF ends question

I just purchased Tbryne MAF ends and i have been hearing that these will lean out the car because they have no screen and they inside is few mm bigger in diameter than a stock MAF....is this true??? I do have a Vinci VHP tuner, so cant i just add 5 or 10% more fuel to fix this problem???
Any info will help.....
-Clay (2000 C5 A4 with 3.15 rear gear)
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Old Apr 30, 2006 | 07:06 PM
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You might have more results posting in the C5 scan and tune section.
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Old Apr 30, 2006 | 11:00 PM
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Anyone???? I need some help here.....
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Old May 1, 2006 | 12:23 AM
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depends on how rich/lean you are to start off with. back when i installed the vinci MAF ends on the wife's car, the o2 readings were in the 980mV range. once installed and redyno'ed the same day. they went to 890-910mV. this translates to about 13:1 a/f ratio. to answer your question,yes, you can add 5% 10% power enrichment to offset the lean condition that might arise when you install the MAF ends.
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Old May 1, 2006 | 01:51 AM
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Thanks Alot for the info Mrr23
Has this been happening to anyone else with ported maf ends like Tbyrne or Vinci????
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Old May 1, 2006 | 08:28 AM
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I put on the BPP MAF ends, it didn't run lean, it ran great with them.
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Old May 2, 2006 | 07:19 PM
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Ttt
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