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Old 07-28-2014, 03:12 PM   #213
King Tut
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Quote:
Originally Posted by BRZPDX View Post
I'm just running a boost gauge currently, and reading the AFR through the factory O2 sensor with Scanguage II. Although the factory sensors can only see to 12.0 ish to 20.1, won't that range be good enough? I know when I go WoT, it will be at 12.0 for a while, knowing its below that. Cruising, about 14.7 to 14.0, idling/coasting at 20.1 to 19.8.

Are widebands more accurate, or is it better just seeing a wider range of AFR's?
Widebands are more accurate, have more range, and sample quicker than you can sample with a Scanguage II. By the way you should be idling closer to 15:1. I would also worry about how far below 12:1 I was going under WOT.
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