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Old 02-01-2011, 08:54 AM   #2 (permalink)
redneck
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Geo XL1 - '94 Geo Metro
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A wideband LAFtype O2 sensor will read up to a 22:1 A/F ratio.

Here's an idea.

You may be able to install one in addition to the one your trying to trick.
Then monitor voltage separately to get a idea of how lean your running.


Honda uses these type O2 sensors in their lean burn engines.

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