wideband question

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Jasong
Posts: 102
Joined: Wed May 31, 2006 4:06 pm

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I just put in an AEM wideband and when cruising it is constantly ranging between 14.2 and 15.7. It does it so fast its hard to read the actual ratio. When I give it more throttle it will settle to a constant ratio. Is it normal to constantly range like this?

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240life
Posts: 1313
Joined: Mon Sep 24, 2007 6:02 am
Car: 1993 Nissan 240SX S13 Coupe SR20DET blacktop
Location: ME
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Yes, your stock o2 sensor will constantly try to correct rich/lean conditions causing a fluctuation under vacume. Seeing a steady AFR level under boost is typical.
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